Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 412: | \[{8^{412}-1\over7}\] | 32 × 5 × 13 × 619 × 1237 × 2473 × 15451 × 41201 × 17325013 × 89620507 × 520379897 × 539455909 × 2550183799 × 415141630193<12> × 2400744384937<13> × 98277023988499<14> × 68545852036177507<17> × 473000157711296729<18> × 8142767081771726171<19> × 1953272766780718501831<22> × 3976656429941438590393<22> × 117070097457656623005977<24> × 4091102936121805539709429<25> × 46599659711047809652593889369<29> × 7521737478732572053581227840017636545169<40> × 6395375588121100883440814657083560825282870457413014051377<58> |