Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 391: | \[{25^{391}-1\over24}\] | 47 × 409 × 3061 × 8971 × 104789 × 2568871 × 41540861 × 74708371 × 466344409 × 311250747739<12> × 332207361361<12> × 338342444887<12> × 42272797713043<14> × 416079604348810289<18> × 513765906786138686731576770204403<33> × 787775103387484980951811308682438561347569<42> × 553265630385022055666695438035664111456941805599247964204695144048160899<72> × 80500240108620821600554970587125841775999919410290262911667706097023511257891861551435581<89> × 71810063677402678844404879943772870035650494904955301915301886490948340339651696936767062921951400736160519569698046698254557201977104424052528587048244435270577035138131662897328100137234312558089<197> |