Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 176: | \[{13^{176}-1\over12}\] | 24 × 5 × 7 × 17 × 23 × 89 × 419 × 859 × 4049 × 5281 × 6073 × 14281 × 18041 × 407865361 × 128011456717<12> × 3577574298489429481<19> × 479397861182521358407441<24> × 1358999792679530608571000081<28> × 49454398571328103550462982043605169<35> × 668229430151772307653060812800711311233<39> |