Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 98: | \[{22^{98}-1\over21}\] | 72 × 23 × 29 × 43 × 197 × 51647 × 86969 × 737353 × 16968421 × 1545133367 × 1987506739 × 58402513986319469<17> × 294211349582600267301405853<27> × 20934125628717874030514639631784975009<38> |