Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 612: | \[{8^{612}-1\over7}\] | 34 × 5 × 13 × 19 × 37 × 73 × 103 × 109 × 137 × 307 × 409 × 613 × 919 × 953 × 2143 × 2857 × 3061 × 3673 × 6529 × 11119 × 13669 × 26317 × 27541 × 43691 × 87211 × 98227 × 123931 × 131071 × 246241 × 262657 × 279073 × 2582029 × 4260133 × 67135177 × 318194713 × 1326700741 × 26159806891<11> × 1426465062181<13> × 27439122228481<14> × 48752128660789<14> × 2152204823142217<16> × 12458723489217613<17> × 33204917536003441<17> × 238495197879143209<18> × 407770693450231393<18> × 572404735191016891<18> × 24418671951944649151<20> × 75582488424179347083438319<26> × 72665575884323021522460727660186327381229881<44> × 49848448234572624009465371493197779785120970152607<50> × 6261723151446186463290924787550835342654946727586561553<55> × 142730612959829002894034398743103881310413811884274698587692815637<66> |