Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 76: | \[{29^{76}-1\over28}\] | 22 × 3 × 5 × 421 × 16759 × 1386659 × 157193380600163813309<21> × 12139270932215509058971<23> × 44239664898013321738694658016521051099258908813897161<53> |