Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 540: | \[{31^{540}-1\over30}\] | 26 × 33 × 5 × 72 × 11 × 13 × 19 × 37 × 41 × 61 × 109 × 163 × 181 × 271 × 331 × 541 × 577 × 2521 × 3637 × 6427 × 17351 × 21821 × 25621 × 63901 × 81343 × 106291 × 922561 × 1529401 × 1536553 × 1538083 × 2065411 × 8728381 × 14398921 × 18880993 × 58765501 × 327412201 × 599329963 × 1344742561 × 4707206941<10> × 50358897181<11> × 302533008751<12> × 304643210761<12> × 512616735577<12> × 880374069121<12> × 1836205027201<13> × 5730470449021<13> × 126901881805771<15> × 277477787226853<15> × 734128222950181<15> × 91556360840213317<17> × 19235533383829731610441<23> × 337048683633480845467801<24> × 41572982762295483893808010501<29> × 300392264044249601502733598251<30> × 280377166850713273629309325557934604953392483391<48> × 3062652058567421722695601733366295562873644660421771523821<58> × 709135514066872716844936829975214286079399391243388274683105677510638287511203265763961<87> × [77680496307082990189113932833422605332103939938302441633789218555780426569022017641104752782171428565061111244682490247694643349130888940794283715696637506504689995624587920575120254120055358153534381<200>] |