Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 151: | \[{22^{151}-1\over21}\] | 778098516620847133<18> × 29409976828498709513594659<26> × 19525293598496349373701038761564702797823558943865413264107<59> × 5413506551479082306429032015142255588136276577543097034811104831259422604537958760904247871771576703<100> |