Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[{22^{206}-1\over21}\] | 23 × 2267 × 17099 × 12546019 × 49635664157<11> × 8721794305834592252284543<25> × 116542726240250031812149100853350806721<39> × 46785666161657031805071305076945629355901<41> × 6341782372693406402461036819193656469694486861957376130723625499859<67> × 983983786688139784721713536830541797837808633057055792630695014947738643936147<78> |