F_ba Decomposition of the basenumber in its prime factors. F_po Decomposition of the palindromic octagonal. Note : a palindromic octagonal will always be divisible by its basenumber. To reconstruct the octagonals you must take into account the purple factors. Date Date of discovery by the author. Hypertext links to related topics in number theory Comm Comments about the palindromic octagonal number.
[32] F_ba 790350914396051463771 = 3 x 3 x 691 x 1967741 x 64584970949 F_po 1873963703660024006763676004200663073693781 = 11 x 19 x 8053 x 1408760706247043 Date January 3, 2008 (Feng Yuan) [31] F_ba 65621182548683007153 = 3 x 3 x 19 x 23 x 41 x 8598589 x 47327009 F_po 12918418797262737739193773726279781481921 = 45659 x 64157 x 67203959839 Date January 3, 2008 (Feng Yuan) [30] F_ba 704687633763271761 = 3 x 271 x 1327 x 2333 x 4091 x 68437 F_po 1489753983536637090907366353893579841 = 13 x 14519929 x 11199794653 Date April 2, 2002 (Feng Yuan) [29] F_ba 589588144333920233 = 3511 x 465433 x 360795191 F_po 1042842539817346669666437189352482401 = 764783 x 768869 x 3008011 Date April 2, 2002 (Feng Yuan) [28] F_ba 221420450951946111 = 3 x 19 x 227 x 424861 x 40278209 F_po 147081048299289519915982992840180741 = 11 x 60387395714167121 Date April 2, 2002 (Feng Yuan) [27] F_ba 145815635485061318 = 2 x 7 x 624667 x 16673527711 F_po 63786598655736820002863755689568736 = 2 x 2 x 2 x 2 x 167 x 743 x 97369 x 2262973 Date April 2, 2002 (Feng Yuan) [26] F_ba 136626014502187505 = 5 x 89 x 307024751690309 F_po 56000003516255851015855261530000065 = 149 x 919 x 2993318120123 Date April 2, 2002 (Feng Yuan) [25] F_ba 7897699388697563 = 97 x 809 x 2477 x 5261 x 7723 F_po 187120966902701565107209669021781 = 4031761 x 5876612767 Date April 2, 2002 (Feng Yuan) [24] F_ba 4731413168091258 = 2 x 3 x 3 x 11 x 37 x 61 x 10587517103 F_po 67158811701562055026510711885176 = 2 x 2 x 3548559876068443 Date April 2, 2002 (Feng Yuan) [23] F_ba 222032718762723 = 3 x 3 x 3 x 3 x 11 x 9521 x 26173193 F_po 147895584603498894306485598741 = 223 x 12517 x 238634437 Date April 2, 2002 (Feng Yuan) [22] F_ba 105802560494387 = 59 x 1793263737193 F_po 33582545421505050512454528533 = 89 x 250643 x 14228917 Date April 2, 2002 (Feng Yuan) [21] F_ba 78849864240621 = 3 x 886607 x 29644801 F_po 18651903272292929227230915681 = 59 x 349 x 11488008971 Date April 2, 2002 (Feng Yuan) [20] F_ba 51722791547842 = 2 x 619 x 41779314659 F_po 8025741496504444056941475.208 = 2 x 2 x 11 x 35963 x 98060617 Date April 2, 2002 (Feng Yuan) [19] F_ba 5847307263801 = 3 x 3 x 649700807089 F_po 102573006711888117600375201 = 7 x 2505988827343 Date April 2, 2002 (Feng Yuan) [18] F_ba 1400295262095 = 3 x 3 x 3 x 5 x 17 x 67 x 9106723 F_po 5882480463134313640842885 = 61 x 68866980103 Date April 2, 2002 (Feng Yuan) [17] F_ba 335038979077 = 11 x 1201 x 25360607 F_po 336753352502205253357633 = 431 x 2332057859 Date April 2, 2002 (Feng Yuan) [16] F_ba 13175129925 = 3 x 3 x 3 x 3 x 5 x 5 x 29 x 157 x 1429 F_po 520752145595541257025 = 43 x 919195111 Date July 24, 2000 (Patrick De Geest) [15] F_ba 1050553507 = 29 x 36225983 F_po 3310988011108890133 = 7 x 450237217 [14] F_ba 42687015 = 3 x 5 x 7 x 19 x 21397 F_po 5466543663456645 = 11 x 421 x 27653 [13] F_ba 2017631 = 7 x 11 x 26203 F_po 12212500521221 = 13 x 353 x 1319 [12] F_ba 1472746 = 2 x 11 x 66943 F_po 6506939396056 = 2 x 2 x 1104559 [11] F_ba 1054167 = 3 x 37 x 9497 F_po 3333802083333 = 3162499 [10] F_ba 1054067 = 7 x 23 x 6547 F_po 3333169613333 = 67 x 109 x 433 [9] F_ba 453486 = 2 x 3 x 11 x 6871 F_po 616947749616 = 2 x 2 x 2 x 170057 [8] F_ba 426115 = 5 x 85223 F_po 544721127445 = 11 x 251 x 463 [7] F_ba 7863 = 3 x 2621 F_po 185464581 = 103 x 229 [6] F_ba 7341 = 3 x 2447 F_po 161656161 = 19 x 19 x 61 [5] F_ba 6431 = 59 x 109 F_po 124060421 = 101 x 191 [4] F_ba 6331 = 13 x 487 F_po 120232021 = 7 x 2713 [3] F_ba 52 = 2 x 2 x 13 F_po 8008 = 2 x 7 x 11 [2] F_ba 2 = PRIME F_po 8 = 2 x 2 [1] F_ba 1 = 1 F_po 1 = 1
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