Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 460: | \[{31^{460}-1\over30}\] | 26 × 5 × 11 × 13 × 37 × 41 × 47 × 181 × 461 × 691 × 829 × 1381 × 17351 × 21821 × 96601 × 114311 × 195271 × 1509997 × 61562537 × 109284961 × 176542021 × 524818601 × 590027741 × 4707206941<10> × 45414448613<11> × 1955865713101<13> × 23856848059764277<17> × 7176374761323733117<19> × 24049043219391687361<20> × 293006379555093281221<21> × 10763566930771147012087186194382117<35> × 45790319981281086561307344188678263806067171139001234505229415023817573183092317790531<86> × 1814392827075469009286547723958497289007356519948646784210029597394244012245475287978655917791234899524643597615301<115> × [80416055034801358772915552464687522074410676941615395865802135377704113569574815135176354775821464308968090750093920436408884129064799129807171039373665277613143990515539427809613923512898152894719734557175096564170977757790710025117817219224157461<248>] |