Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 247: | \[{25^{247}-1\over24}\] | 191 × 761 × 4447 × 5227 × 6271 × 19609 × 29641 × 38923 × 213029 × 3981071 × 5853901 × 29599987 × 305175781 × 5513798691623<13> × 6655472266225553901469<22> × 14120148037454873337452770514154962809<38> × 893134065430622331883159985777080426121<39> × 73264607998188798376620748253610482190769<41> × 28538367422393897507312436111481389107448579960825321689534963<62> × 3916581678566130795968630368428499724365376308585023695226827857169<67> |