Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 420: | \[{25^{420}-1\over24}\] | 22 × 3 × 72 × 11 × 13 × 29 × 31 × 41 × 43 × 61 × 71 × 127 × 181 × 211 × 241 × 281 × 313 × 379 × 421 × 449 × 521 × 601 × 631 × 1741 × 2281 × 2521 × 4201 × 6553 × 7603 × 7621 × 9161 × 19531 × 90217 × 390001 × 519499 × 1736701 × 5236141 × 15216601 × 69566521 × 85280581 × 234750601 × 632133361 × 4698932281<10> × 119461537021<12> × 24587411156281<14> × 21226783250214361<17> × 59509429687890001<17> × 23320317172851318360001<23> × 1354224218968567573270561<25> × 6019022585035590658668001<25> × 514845603025661988644048801<27> × 782349962686680131171831761<27> × 13148832195720299503896018648521<32> × 24554874798220986864643786538129965751201<41> × 123682372689587234320272170926306609340495521<45> × 1643757109388117682724285686131351474922275677604301152980315921<64> × 12137099588195811990457939447127785109605610509438872341015390625601<68> |