Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 471: | \[{3^{471}-1\over2}\] | 13 × 9421 × 3381925092493<13> × 9891109125337566719<19> × 1283810768507270931382867729773882314783<40> × 95232991961590105161615580822336892311998189163571236402837<59> × 528863020145091859767657897912602516632385670379974076333262698505030222897440948635979693<90> |