Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 138: | 25 × 3 × 72 × 19 × 47 × 139 × 331 × 6073 × 1164859 × 1509997 × 61562537 × 117071611 × 45414448613<11> × 2553526979752336381<19> × 7176374761323733117<19> × 293006379555093281221<21> × 975573640291548852951234645170717556781<39> × 605108647823401001709236169890011342691833949935122187<54> |