Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 93: | \[{13^{93}-1\over12}\] | 3 × 61 × 311 × 1117 × 1303 × 6377362657<10> × 109711631401199502223<21> × 8170509011431363408568150369<28> × 6953421404898804540031541059209313<34> |