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Logarithm Table for base 81

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This page shows the logarithm table for base 81, in blocks of 100 values — each block covers one whole number N (its row lists N.0 through N.9, and each row's 10 columns walk the hundredths digit 0 through 9). Hover any cell to trace it back to its row and column, or print a block directly from its own header.

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Logarithm Table for base 81 — N = 1.00–1.99
N.i 0 1 2 3 4 5 6 7 8 9
1.0 0.000000 0.002264 0.004506 0.006726 0.008925 0.011103 0.013260 0.015396 0.017513 0.019611
1.1 0.021689 0.023748 0.025789 0.027812 0.029817 0.031804 0.033774 0.035728 0.037664 0.039585
1.2 0.041489 0.043378 0.045250 0.047108 0.048951 0.050779 0.052592 0.054391 0.056175 0.057946
1.3 0.059704 0.061447 0.063178 0.064895 0.066600 0.068292 0.069971 0.071638 0.073293 0.074936
1.4 0.076568 0.078187 0.079795 0.081392 0.082978 0.084553 0.086117 0.087670 0.089213 0.090745
1.5 0.092268 0.093780 0.095282 0.096774 0.098256 0.099729 0.101193 0.102647 0.104092 0.105527
1.6 0.106954 0.108372 0.109781 0.111181 0.112573 0.113956 0.115331 0.116698 0.118057 0.119407
1.7 0.120750 0.122084 0.123411 0.124730 0.126042 0.127346 0.128643 0.129932 0.131214 0.132489
1.8 0.133757 0.135017 0.136271 0.137518 0.138758 0.139992 0.141218 0.142438 0.143652 0.144859
1.9 0.146060 0.147255 0.148443 0.149625 0.150801 0.151971 0.153135 0.154293 0.155445 0.156592

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Logarithm Table for base 81 — N = 2.00–2.99
N.i 0 1 2 3 4 5 6 7 8 9
2.0 0.157732 0.158867 0.159997 0.161120 0.162239 0.163351 0.164459 0.165561 0.166657 0.167749
2.1 0.168835 0.169916 0.170992 0.172063 0.173129 0.174190 0.175246 0.176297 0.177343 0.178384
2.2 0.179421 0.180453 0.181481 0.182503 0.183521 0.184535 0.185544 0.186549 0.187549 0.188545
2.3 0.189537 0.190524 0.191507 0.192486 0.193460 0.194431 0.195397 0.196359 0.197317 0.198271
2.4 0.199221 0.200168 0.201110 0.202048 0.202983 0.203914 0.204841 0.205764 0.206683 0.207599
2.5 0.208511 0.209419 0.210324 0.211225 0.212123 0.213017 0.213908 0.214795 0.215679 0.216559
2.6 0.217436 0.218310 0.219180 0.220047 0.220910 0.221771 0.222628 0.223482 0.224332 0.225180
2.7 0.226024 0.226865 0.227704 0.228539 0.229371 0.230200 0.231026 0.231849 0.232669 0.233486
2.8 0.234300 0.235111 0.235920 0.236725 0.237528 0.238328 0.239125 0.239919 0.240711 0.241499
2.9 0.242285 0.243069 0.243849 0.244627 0.245403 0.246175 0.246945 0.247713 0.248478 0.249240
Logarithm Table for base 81 — N = 3.00–3.99
N.i 0 1 2 3 4 5 6 7 8 9
3.0 0.250000 0.250757 0.251512 0.252264 0.253014 0.253761 0.254506 0.255249 0.255989 0.256726
3.1 0.257462 0.258195 0.258925 0.259653 0.260379 0.261103 0.261824 0.262543 0.263260 0.263974
3.2 0.264686 0.265396 0.266104 0.266810 0.267513 0.268215 0.268914 0.269611 0.270305 0.270998
3.3 0.271689 0.272377 0.273064 0.273748 0.274430 0.275111 0.275789 0.276465 0.277140 0.277812
3.4 0.278482 0.279150 0.279817 0.280481 0.281144 0.281804 0.282463 0.283120 0.283774 0.284427
3.5 0.285078 0.285728 0.286375 0.287021 0.287664 0.288306 0.288946 0.289585 0.290221 0.290856
3.6 0.291489 0.292120 0.292750 0.293378 0.294004 0.294628 0.295250 0.295871 0.296491 0.297108
3.7 0.297724 0.298338 0.298951 0.299562 0.300171 0.300779 0.301385 0.301989 0.302592 0.303193
3.8 0.303793 0.304391 0.304987 0.305582 0.306175 0.306767 0.307358 0.307946 0.308534 0.309119
3.9 0.309704 0.310286 0.310868 0.311447 0.312026 0.312602 0.313178 0.313752 0.314324 0.314895
Logarithm Table for base 81 — N = 4.00–4.99
N.i 0 1 2 3 4 5 6 7 8 9
4.0 0.315465 0.316033 0.316600 0.317165 0.317729 0.318292 0.318853 0.319413 0.319971 0.320528
4.1 0.321084 0.321638 0.322191 0.322743 0.323293 0.323842 0.324390 0.324936 0.325481 0.326025
4.2 0.326568 0.327109 0.327649 0.328187 0.328725 0.329261 0.329795 0.330329 0.330861 0.331392
4.3 0.331922 0.332451 0.332978 0.333504 0.334029 0.334553 0.335075 0.335597 0.336117 0.336636
4.4 0.337154 0.337670 0.338186 0.338700 0.339213 0.339725 0.340236 0.340745 0.341254 0.341761
4.5 0.342268 0.342773 0.343277 0.343780 0.344281 0.344782 0.345282 0.345780 0.346278 0.346774
4.6 0.347269 0.347763 0.348256 0.348748 0.349239 0.349729 0.350218 0.350706 0.351193 0.351678
4.7 0.352163 0.352647 0.353129 0.353611 0.354092 0.354571 0.355050 0.355527 0.356004 0.356479
4.8 0.356954 0.357428 0.357900 0.358372 0.358842 0.359312 0.359781 0.360249 0.360715 0.361181
4.9 0.361646 0.362110 0.362573 0.363035 0.363496 0.363956 0.364416 0.364874 0.365331 0.365788
Logarithm Table for base 81 — N = 5.00–5.99
N.i 0 1 2 3 4 5 6 7 8 9
5.0 0.366243 0.366698 0.367152 0.367605 0.368057 0.368508 0.368958 0.369407 0.369856 0.370303
5.1 0.370750 0.371195 0.371640 0.372084 0.372527 0.372970 0.373411 0.373852 0.374292 0.374730
5.2 0.375168 0.375606 0.376042 0.376478 0.376912 0.377346 0.377779 0.378211 0.378643 0.379073
5.3 0.379503 0.379932 0.380360 0.380787 0.381214 0.381640 0.382065 0.382489 0.382912 0.383335
5.4 0.383757 0.384178 0.384598 0.385017 0.385436 0.385854 0.386271 0.386688 0.387103 0.387518
5.5 0.387932 0.388346 0.388758 0.389170 0.389581 0.389992 0.390401 0.390810 0.391218 0.391626
5.6 0.392032 0.392438 0.392844 0.393248 0.393652 0.394055 0.394458 0.394859 0.395260 0.395661
5.7 0.396060 0.396459 0.396857 0.397255 0.397651 0.398048 0.398443 0.398838 0.399232 0.399625
5.8 0.400018 0.400410 0.400801 0.401192 0.401582 0.401971 0.402360 0.402748 0.403135 0.403522
5.9 0.403908 0.404293 0.404678 0.405062 0.405445 0.405828 0.406210 0.406592 0.406973 0.407353
Logarithm Table for base 81 — N = 6.00–6.99
N.i 0 1 2 3 4 5 6 7 8 9
6.0 0.407732 0.408111 0.408490 0.408867 0.409244 0.409621 0.409997 0.410372 0.410747 0.411120
6.1 0.411494 0.411867 0.412239 0.412610 0.412981 0.413351 0.413721 0.414090 0.414459 0.414827
6.2 0.415194 0.415561 0.415927 0.416293 0.416657 0.417022 0.417386 0.417749 0.418112 0.418474
6.3 0.418835 0.419196 0.419556 0.419916 0.420275 0.420634 0.420992 0.421350 0.421707 0.422063
6.4 0.422419 0.422774 0.423129 0.423483 0.423837 0.424190 0.424542 0.424894 0.425246 0.425597
6.5 0.425947 0.426297 0.426646 0.426995 0.427343 0.427691 0.428038 0.428384 0.428731 0.429076
6.6 0.429421 0.429766 0.430110 0.430453 0.430796 0.431139 0.431481 0.431822 0.432163 0.432503
6.7 0.432843 0.433183 0.433521 0.433860 0.434198 0.434535 0.434872 0.435208 0.435544 0.435880
6.8 0.436215 0.436549 0.436883 0.437216 0.437549 0.437882 0.438214 0.438545 0.438876 0.439207
6.9 0.439537 0.439866 0.440195 0.440524 0.440852 0.441180 0.441507 0.441834 0.442160 0.442486
Logarithm Table for base 81 — N = 7.00–7.99
N.i 0 1 2 3 4 5 6 7 8 9
7.0 0.442811 0.443136 0.443460 0.443784 0.444108 0.444431 0.444753 0.445075 0.445397 0.445718
7.1 0.446039 0.446359 0.446679 0.446998 0.447317 0.447636 0.447954 0.448271 0.448589 0.448905
7.2 0.449221 0.449537 0.449853 0.450168 0.450482 0.450796 0.451110 0.451423 0.451736 0.452048
7.3 0.452360 0.452672 0.452983 0.453294 0.453604 0.453914 0.454223 0.454532 0.454841 0.455149
7.4 0.455456 0.455764 0.456071 0.456377 0.456683 0.456989 0.457294 0.457599 0.457903 0.458207
7.5 0.458511 0.458814 0.459117 0.459419 0.459721 0.460023 0.460324 0.460625 0.460925 0.461225
7.6 0.461525 0.461824 0.462123 0.462422 0.462720 0.463017 0.463314 0.463611 0.463908 0.464204
7.7 0.464500 0.464795 0.465090 0.465385 0.465679 0.465973 0.466266 0.466559 0.466852 0.467144
7.8 0.467436 0.467728 0.468019 0.468310 0.468600 0.468890 0.469180 0.469469 0.469758 0.470047
7.9 0.470335 0.470623 0.470910 0.471197 0.471484 0.471771 0.472057 0.472342 0.472628 0.472913
Logarithm Table for base 81 — N = 8.00–8.99
N.i 0 1 2 3 4 5 6 7 8 9
8.0 0.473197 0.473482 0.473766 0.474049 0.474332 0.474615 0.474898 0.475180 0.475462 0.475743
8.1 0.476024 0.476305 0.476585 0.476865 0.477145 0.477425 0.477704 0.477982 0.478261 0.478539
8.2 0.478816 0.479094 0.479371 0.479647 0.479924 0.480200 0.480475 0.480751 0.481026 0.481300
8.3 0.481575 0.481849 0.482122 0.482396 0.482669 0.482941 0.483214 0.483486 0.483758 0.484029
8.4 0.484300 0.484571 0.484841 0.485111 0.485381 0.485651 0.485920 0.486188 0.486457 0.486725
8.5 0.486993 0.487261 0.487528 0.487795 0.488061 0.488328 0.488594 0.488859 0.489125 0.489390
8.6 0.489655 0.489919 0.490183 0.490447 0.490711 0.490974 0.491237 0.491499 0.491762 0.492024
8.7 0.492285 0.492547 0.492808 0.493069 0.493329 0.493589 0.493849 0.494109 0.494368 0.494627
8.8 0.494886 0.495145 0.495403 0.495661 0.495918 0.496175 0.496432 0.496689 0.496945 0.497202
8.9 0.497457 0.497713 0.497968 0.498223 0.498478 0.498732 0.498986 0.499240 0.499494 0.499747
Logarithm Table for base 81 — N = 9.00–9.99
N.i 0 1 2 3 4 5 6 7 8 9
9.0 0.500000 0.500253 0.500505 0.500757 0.501009 0.501261 0.501512 0.501763 0.502014 0.502264
9.1 0.502514 0.502764 0.503014 0.503263 0.503513 0.503761 0.504010 0.504258 0.504506 0.504754
9.2 0.505002 0.505249 0.505496 0.505742 0.505989 0.506235 0.506481 0.506726 0.506972 0.507217
9.3 0.507462 0.507706 0.507950 0.508195 0.508438 0.508682 0.508925 0.509168 0.509411 0.509653
9.4 0.509895 0.510137 0.510379 0.510621 0.510862 0.511103 0.511343 0.511584 0.511824 0.512064
9.5 0.512304 0.512543 0.512782 0.513021 0.513260 0.513498 0.513736 0.513974 0.514212 0.514449
9.6 0.514686 0.514923 0.515160 0.515396 0.515633 0.515869 0.516104 0.516340 0.516575 0.516810
9.7 0.517045 0.517279 0.517513 0.517747 0.517981 0.518215 0.518448 0.518681 0.518914 0.519146
9.8 0.519378 0.519611 0.519842 0.520074 0.520305 0.520537 0.520767 0.520998 0.521229 0.521459
9.9 0.521689 0.521919 0.522148 0.522377 0.522606 0.522835 0.523064 0.523292 0.523520 0.523748
Logarithm Table for base 81 — N = 10.00–10.99
N.i 0 1 2 3 4 5 6 7 8 9
10.0 0.523976 0.524203 0.524430 0.524657 0.524884 0.525111 0.525337 0.525563 0.525789 0.526015
10.1 0.526240 0.526465 0.526690 0.526915 0.527140 0.527364 0.527588 0.527812 0.528035 0.528259
10.2 0.528482 0.528705 0.528928 0.529150 0.529373 0.529595 0.529817 0.530038 0.530260 0.530481
10.3 0.530702 0.530923 0.531144 0.531364 0.531584 0.531804 0.532024 0.532244 0.532463 0.532682
10.4 0.532901 0.533120 0.533338 0.533556 0.533774 0.533992 0.534210 0.534427 0.534645 0.534862
10.5 0.535078 0.535295 0.535512 0.535728 0.535944 0.536160 0.536375 0.536591 0.536806 0.537021
10.6 0.537235 0.537450 0.537664 0.537879 0.538093 0.538306 0.538520 0.538733 0.538946 0.539159
10.7 0.539372 0.539585 0.539797 0.540009 0.540221 0.540433 0.540645 0.540856 0.541067 0.541278
10.8 0.541489 0.541700 0.541910 0.542120 0.542330 0.542540 0.542750 0.542959 0.543168 0.543378
10.9 0.543586 0.543795 0.544004 0.544212 0.544420 0.544628 0.544836 0.545043 0.545250 0.545458
Logarithm Table for base 81 — N = 11.00–11.99
N.i 0 1 2 3 4 5 6 7 8 9
11.0 0.545665 0.545871 0.546078 0.546284 0.546491 0.546697 0.546902 0.547108 0.547314 0.547519
11.1 0.547724 0.547929 0.548134 0.548338 0.548543 0.548747 0.548951 0.549155 0.549358 0.549562
11.2 0.549765 0.549968 0.550171 0.550374 0.550576 0.550779 0.550981 0.551183 0.551385 0.551586
11.3 0.551788 0.551989 0.552190 0.552391 0.552592 0.552792 0.552993 0.553193 0.553393 0.553593
11.4 0.553793 0.553992 0.554191 0.554391 0.554590 0.554788 0.554987 0.555186 0.555384 0.555582
11.5 0.555780 0.555978 0.556175 0.556373 0.556570 0.556767 0.556964 0.557161 0.557358 0.557554
11.6 0.557750 0.557946 0.558142 0.558338 0.558534 0.558729 0.558924 0.559119 0.559314 0.559509
11.7 0.559704 0.559898 0.560092 0.560286 0.560480 0.560674 0.560868 0.561061 0.561254 0.561447
11.8 0.561640 0.561833 0.562026 0.562218 0.562410 0.562602 0.562794 0.562986 0.563178 0.563369
11.9 0.563561 0.563752 0.563943 0.564134 0.564324 0.564515 0.564705 0.564895 0.565085 0.565275
Logarithm Table for base 81 — N = 12.00–12.99
N.i 0 1 2 3 4 5 6 7 8 9
12.0 0.565465 0.565654 0.565844 0.566033 0.566222 0.566411 0.566600 0.566788 0.566977 0.567165
12.1 0.567353 0.567541 0.567729 0.567917 0.568104 0.568292 0.568479 0.568666 0.568853 0.569040
12.2 0.569226 0.569413 0.569599 0.569785 0.569971 0.570157 0.570343 0.570528 0.570714 0.570899
12.3 0.571084 0.571269 0.571454 0.571638 0.571823 0.572007 0.572191 0.572375 0.572559 0.572743
12.4 0.572927 0.573110 0.573293 0.573476 0.573659 0.573842 0.574025 0.574208 0.574390 0.574572
12.5 0.574754 0.574936 0.575118 0.575300 0.575481 0.575663 0.575844 0.576025 0.576206 0.576387
12.6 0.576568 0.576748 0.576928 0.577109 0.577289 0.577469 0.577649 0.577828 0.578008 0.578187
12.7 0.578366 0.578546 0.578725 0.578903 0.579082 0.579261 0.579439 0.579617 0.579795 0.579973
12.8 0.580151 0.580329 0.580507 0.580684 0.580861 0.581038 0.581215 0.581392 0.581569 0.581746
12.9 0.581922 0.582098 0.582275 0.582451 0.582627 0.582802 0.582978 0.583154 0.583329 0.583504
Logarithm Table for base 81 — N = 13.00–13.99
N.i 0 1 2 3 4 5 6 7 8 9
13.0 0.583679 0.583854 0.584029 0.584204 0.584378 0.584553 0.584727 0.584901 0.585075 0.585249
13.1 0.585423 0.585597 0.585770 0.585944 0.586117 0.586290 0.586463 0.586636 0.586809 0.586981
13.2 0.587154 0.587326 0.587498 0.587670 0.587842 0.588014 0.588186 0.588357 0.588529 0.588700
13.3 0.588871 0.589042 0.589213 0.589384 0.589554 0.589725 0.589895 0.590066 0.590236 0.590406
13.4 0.590576 0.590745 0.590915 0.591085 0.591254 0.591423 0.591592 0.591761 0.591930 0.592099
13.5 0.592268 0.592436 0.592604 0.592773 0.592941 0.593109 0.593277 0.593444 0.593612 0.593780
13.6 0.593947 0.594114 0.594281 0.594448 0.594615 0.594782 0.594949 0.595115 0.595282 0.595448
13.7 0.595614 0.595780 0.595946 0.596112 0.596278 0.596443 0.596609 0.596774 0.596939 0.597104
13.8 0.597269 0.597434 0.597599 0.597763 0.597928 0.598092 0.598256 0.598420 0.598584 0.598748
13.9 0.598912 0.599076 0.599239 0.599403 0.599566 0.599729 0.599892 0.600055 0.600218 0.600381
Logarithm Table for base 81 — N = 14.00–14.99
N.i 0 1 2 3 4 5 6 7 8 9
14.0 0.600543 0.600706 0.600868 0.601030 0.601193 0.601355 0.601517 0.601678 0.601840 0.602002
14.1 0.602163 0.602324 0.602486 0.602647 0.602808 0.602969 0.603129 0.603290 0.603450 0.603611
14.2 0.603771 0.603931 0.604092 0.604251 0.604411 0.604571 0.604731 0.604890 0.605050 0.605209
14.3 0.605368 0.605527 0.605686 0.605845 0.606004 0.606162 0.606321 0.606479 0.606638 0.606796
14.4 0.606954 0.607112 0.607270 0.607428 0.607585 0.607743 0.607900 0.608057 0.608215 0.608372
14.5 0.608529 0.608686 0.608842 0.608999 0.609156 0.609312 0.609468 0.609625 0.609781 0.609937
14.6 0.610093 0.610249 0.610404 0.610560 0.610715 0.610871 0.611026 0.611181 0.611336 0.611491
14.7 0.611646 0.611801 0.611955 0.612110 0.612264 0.612419 0.612573 0.612727 0.612881 0.613035
14.8 0.613189 0.613343 0.613496 0.613650 0.613803 0.613956 0.614110 0.614263 0.614416 0.614568
14.9 0.614721 0.614874 0.615026 0.615179 0.615331 0.615484 0.615636 0.615788 0.615940 0.616092
Logarithm Table for base 81 — N = 15.00–15.99
N.i 0 1 2 3 4 5 6 7 8 9
15.0 0.616243 0.616395 0.616547 0.616698 0.616849 0.617001 0.617152 0.617303 0.617454 0.617605
15.1 0.617755 0.617906 0.618057 0.618207 0.618357 0.618508 0.618658 0.618808 0.618958 0.619108
15.2 0.619257 0.619407 0.619557 0.619706 0.619856 0.620005 0.620154 0.620303 0.620452 0.620601
15.3 0.620750 0.620898 0.621047 0.621195 0.621344 0.621492 0.621640 0.621788 0.621936 0.622084
15.4 0.622232 0.622380 0.622527 0.622675 0.622822 0.622970 0.623117 0.623264 0.623411 0.623558
15.5 0.623705 0.623852 0.623998 0.624145 0.624292 0.624438 0.624584 0.624730 0.624877 0.625023
15.6 0.625168 0.625314 0.625460 0.625606 0.625751 0.625897 0.626042 0.626187 0.626332 0.626478
15.7 0.626622 0.626767 0.626912 0.627057 0.627202 0.627346 0.627490 0.627635 0.627779 0.627923
15.8 0.628067 0.628211 0.628355 0.628499 0.628643 0.628786 0.628930 0.629073 0.629217 0.629360
15.9 0.629503 0.629646 0.629789 0.629932 0.630075 0.630218 0.630360 0.630503 0.630645 0.630787
Logarithm Table for base 81 — N = 16.00–16.99
N.i 0 1 2 3 4 5 6 7 8 9
16.0 0.630930 0.631072 0.631214 0.631356 0.631498 0.631640 0.631782 0.631923 0.632065 0.632206
16.1 0.632348 0.632489 0.632630 0.632771 0.632912 0.633053 0.633194 0.633335 0.633476 0.633616
16.2 0.633757 0.633897 0.634037 0.634178 0.634318 0.634458 0.634598 0.634738 0.634878 0.635017
16.3 0.635157 0.635297 0.635436 0.635575 0.635715 0.635854 0.635993 0.636132 0.636271 0.636410
16.4 0.636549 0.636688 0.636826 0.636965 0.637103 0.637242 0.637380 0.637518 0.637656 0.637794
16.5 0.637932 0.638070 0.638208 0.638346 0.638483 0.638621 0.638758 0.638896 0.639033 0.639170
16.6 0.639307 0.639444 0.639581 0.639718 0.639855 0.639992 0.640128 0.640265 0.640401 0.640538
16.7 0.640674 0.640810 0.640946 0.641082 0.641218 0.641354 0.641490 0.641626 0.641761 0.641897
16.8 0.642032 0.642168 0.642303 0.642438 0.642574 0.642709 0.642844 0.642979 0.643113 0.643248
16.9 0.643383 0.643518 0.643652 0.643787 0.643921 0.644055 0.644189 0.644324 0.644458 0.644592
Logarithm Table for base 81 — N = 17.00–17.99
N.i 0 1 2 3 4 5 6 7 8 9
17.0 0.644725 0.644859 0.644993 0.645127 0.645260 0.645394 0.645527 0.645661 0.645794 0.645927
17.1 0.646060 0.646193 0.646326 0.646459 0.646592 0.646725 0.646857 0.646990 0.647122 0.647255
17.2 0.647387 0.647519 0.647651 0.647784 0.647916 0.648048 0.648179 0.648311 0.648443 0.648575
17.3 0.648706 0.648838 0.648969 0.649100 0.649232 0.649363 0.649494 0.649625 0.649756 0.649887
17.4 0.650018 0.650149 0.650279 0.650410 0.650540 0.650671 0.650801 0.650931 0.651062 0.651192
17.5 0.651322 0.651452 0.651582 0.651712 0.651841 0.651971 0.652101 0.652230 0.652360 0.652489
17.6 0.652619 0.652748 0.652877 0.653006 0.653135 0.653264 0.653393 0.653522 0.653651 0.653779
17.7 0.653908 0.654036 0.654165 0.654293 0.654421 0.654550 0.654678 0.654806 0.654934 0.655062
17.8 0.655190 0.655318 0.655445 0.655573 0.655701 0.655828 0.655956 0.656083 0.656210 0.656338
17.9 0.656465 0.656592 0.656719 0.656846 0.656973 0.657099 0.657226 0.657353 0.657479 0.657606
Logarithm Table for base 81 — N = 18.00–18.99
N.i 0 1 2 3 4 5 6 7 8 9
18.0 0.657732 0.657859 0.657985 0.658111 0.658238 0.658364 0.658490 0.658616 0.658742 0.658867
18.1 0.658993 0.659119 0.659244 0.659370 0.659496 0.659621 0.659746 0.659872 0.659997 0.660122
18.2 0.660247 0.660372 0.660497 0.660622 0.660747 0.660871 0.660996 0.661120 0.661245 0.661369
18.3 0.661494 0.661618 0.661742 0.661867 0.661991 0.662115 0.662239 0.662363 0.662486 0.662610
18.4 0.662734 0.662858 0.662981 0.663105 0.663228 0.663351 0.663475 0.663598 0.663721 0.663844
18.5 0.663967 0.664090 0.664213 0.664336 0.664459 0.664582 0.664704 0.664827 0.664949 0.665072
18.6 0.665194 0.665316 0.665439 0.665561 0.665683 0.665805 0.665927 0.666049 0.666171 0.666293
18.7 0.666414 0.666536 0.666657 0.666779 0.666900 0.667022 0.667143 0.667264 0.667386 0.667507
18.8 0.667628 0.667749 0.667870 0.667991 0.668112 0.668232 0.668353 0.668474 0.668594 0.668715
18.9 0.668835 0.668955 0.669076 0.669196 0.669316 0.669436 0.669556 0.669676 0.669796 0.669916
Logarithm Table for base 81 — N = 19.00–19.99
N.i 0 1 2 3 4 5 6 7 8 9
19.0 0.670036 0.670156 0.670275 0.670395 0.670515 0.670634 0.670753 0.670873 0.670992 0.671111
19.1 0.671231 0.671350 0.671469 0.671588 0.671707 0.671825 0.671944 0.672063 0.672182 0.672300
19.2 0.672419 0.672537 0.672656 0.672774 0.672892 0.673011 0.673129 0.673247 0.673365 0.673483
19.3 0.673601 0.673719 0.673837 0.673954 0.674072 0.674190 0.674307 0.674425 0.674542 0.674660
19.4 0.674777 0.674894 0.675011 0.675129 0.675246 0.675363 0.675480 0.675597 0.675713 0.675830
19.5 0.675947 0.676064 0.676180 0.676297 0.676413 0.676530 0.676646 0.676762 0.676879 0.676995
19.6 0.677111 0.677227 0.677343 0.677459 0.677575 0.677691 0.677806 0.677922 0.678038 0.678153
19.7 0.678269 0.678384 0.678500 0.678615 0.678731 0.678846 0.678961 0.679076 0.679191 0.679306
19.8 0.679421 0.679536 0.679651 0.679766 0.679880 0.679995 0.680110 0.680224 0.680339 0.680453
19.9 0.680568 0.680682 0.680796 0.680910 0.681025 0.681139 0.681253 0.681367 0.681481 0.681594
Logarithm Table for base 81 — N = 20.00–20.99
N.i 0 1 2 3 4 5 6 7 8 9
20.0 0.681708 0.681822 0.681936 0.682049 0.682163 0.682276 0.682390 0.682503 0.682617 0.682730
20.1 0.682843 0.682956 0.683070 0.683183 0.683296 0.683409 0.683521 0.683634 0.683747 0.683860
20.2 0.683973 0.684085 0.684198 0.684310 0.684423 0.684535 0.684647 0.684760 0.684872 0.684984
20.3 0.685096 0.685208 0.685320 0.685432 0.685544 0.685656 0.685768 0.685880 0.685991 0.686103
20.4 0.686215 0.686326 0.686438 0.686549 0.686660 0.686772 0.686883 0.686994 0.687105 0.687216
20.5 0.687327 0.687438 0.687549 0.687660 0.687771 0.687882 0.687992 0.688103 0.688214 0.688324
20.6 0.688435 0.688545 0.688655 0.688766 0.688876 0.688986 0.689096 0.689207 0.689317 0.689427
20.7 0.689537 0.689647 0.689756 0.689866 0.689976 0.690086 0.690195 0.690305 0.690414 0.690524
20.8 0.690633 0.690743 0.690852 0.690961 0.691071 0.691180 0.691289 0.691398 0.691507 0.691616
20.9 0.691725 0.691834 0.691942 0.692051 0.692160 0.692268 0.692377 0.692486 0.692594 0.692703

Other Bases

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