Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
79: | \[{25^{79}-1\over24}\] | 18251687 × 7897663181<10> × 511465533067<12> × 205367807127911<15> × 58523123221688392679<20> × 344120456368919234899<21> × 37399095525167136010188229<26> |