Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 275: | \[{31^{275}-1\over30}\] | 52 × 112 × 23 × 101 × 397 × 617 × 4951 × 7151 × 17351 × 13277801 × 150332843 × 167767051 × 437168886001<12> × 20235942281002951<17> × 236661696642275153056980146191674776616380367693641<51> × 5988564461283555992781561320347611668559193354198318388653474076042995157372057369143202709919324736054482517879120584508248125865454410987100486013583725080495847971900153848065057606549715320971270703290880350974806011206791888381079822060395060709580843497684095615234815858612351<283> |