Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 670: | \[{8^{670}-1\over7}\] | 32 × 11 × 31 × 151 × 331 × 1609 × 2011 × 9649 × 22111 × 93131 × 464311 × 6324667 × 7327657 × 14908171 × 193707721 × 1532217641 × 761838257287<12> × 6713103182899<13> × 68626625145959029951<20> × 59151549118532676874448563<26> × 87449423397425857942678833145441<32> × 663636889167401354279502795531186216903001<42> × 21505409328405921060057783156144213618485460844911284448661782641<65> × 462968972850605487726216422914611666280373111850525667327093865346827818121<75> × 32709775817853043375927129449580176700915280951481112121660051681431157746548364566503491912349761<98> × 45585352407277873233201570686216987443937689352763560182208510919640512940450740048217379974353350176275449567506472379764660105306031878630761251841801<152> |