Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 414: | \[{31^{414}-1\over30}\] | 25 × 32 × 72 × 19 × 47 × 139 × 331 × 577 × 3637 × 6073 × 15733 × 81343 × 1164859 × 1509997 × 1538083 × 61562537 × 117071611 × 45414448613<11> × 1234978860270061<16> × 16798026051215317<17> × 2553526979752336381<19> × 7176374761323733117<19> × 293006379555093281221<21> × 2400693977385349407610190609833<31> × 9573823716926205025562034000615319<34> × 975573640291548852951234645170717556781<39> × 1455861090090534812455083062441100188106611524631617<52> × 605108647823401001709236169890011342691833949935122187<54> × 1752090245366786640646485141949289856397048063337150706878553336619<67> × [273942373786692967763113736032045313497104680112523014288492428373127350772268097964864753386252739092141557671166387173976933601164996115754599118521256858426441906547479268521<177>] |