Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 76: | \[{30^{76}-1\over29}\] | 17 × 31 × 53 × 191 × 229 × 12229313 × 226758997 × 14324887741<11> × 9359399031533<13> × 1653398801508051043<19> × 399306293031538498321<21> × 2098323645062285611121141<25> |