Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 290: | \[{25^{290}-1\over24}\] | 2 × 11 × 13 × 41 × 59 × 71 × 521 × 9161 × 13921 × 35671 × 1461311 × 5096867 × 11483163641<11> × 98047293061<11> × 3532907090761<13> × 6090817323763<13> × 17149742984461<14> × 22125996444329<14> × 16972510486384731643441<23> × 2158365113981511371558358567665231<34> × 488654500355218081336311051543759628081<39> × 1334402673828313149547634216455312875601<40> × 388917369321230148861862121856409329475801<42> × 18391238303600748207500870642686179481538321537172841<53> × 77308139452292961453761566365665773184610659508203741668887269986961<68> |