Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 73: | \[{29^{73}-1\over28}\] | 6053603111<10> × 378491163256757<15> × 44615044785278167337<20> × 1776134532576692154401<22> × 11191001020961523818549928371589408039979<41> |