Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 453: | \[{31^{453}-1\over30}\] | 3 × 331 × 22651 × 160967 × 1355419489 × 4571726737<10> × 1942264764259<13> × 33431071634797<14> × 1204070412702967<16> × 16807320721215137164439<23> × 902502388917514064271121799<27> × 493149751025291092907198655658081543<36> × 284185186849889952594856632648571931862124637524620273556979130456692226222665762940158597169892770036061371749<111> × [34527160794745005713991916937641669170920061355753935196469042658573567710038432910136782640383448364811544375966014192672860014207197806181239820945883855608417174776619166494228937306192553622374365442724609937424734389115910974885052052365939888083729925179423969781694558427575005373805166591280574134162833987217979437958967982545487409174669576077779146800566698668442625132011264826902531536377222903<407>] |