Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 512: | \[{7^{512}-1\over6}\] | 211 × 52 × 17 × 257 × 353 × 769 × 1201 × 35969 × 169553 × 7699649 × 28667393 × 134818753 × 197231873 × 47072139617<11> × 531968664833<12> × 1110623386241<13> × 126575155274810369<18> × 15266848196793556098085000332888634369<38> × 6856531741041792239054980342217258517995521<43> × 2783415704056554985941269027566547436008362462334209<52> × 305022291182242180027145566805426714095306390704170736991383019700419044006611047919599277213513373229287987744075124782270820009500662309547547812775532830718829277213472413230468190487050753<192> |