Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 127: | \[{13^{127}-1\over12}\] | 5912867 × 190421635185941<15> × 115806724907473978817<21> × 1889628004829682891131446914841122715904737697796281271846268890798899576955033713387489540044285157<100> |