Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 262: | \[{15^{262}-1\over14}\] | 24 × 263 × 8310543061<10> × 7906676908943<13> × 225909282151193<15> × 2672726277852351048400401941685857214023231112663546845790173<61> × 166459634738560254451837528673170712725691997899058351345139297727929<69> × 351467532649629227163977752581759822731629282593206825245459235382822297905992543242874488851326415305040107428795972131164022166437167579<138> |