Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 242: | \[{5^{242}-1\over4}\] | 2 × 3 × 23 × 67 × 5281 × 12101 × 486179 × 12207031 × 374499841 × 304639362281<12> × 11449313571047243<17> × 4600715686162128721<19> × 12819112747383653095727<23> × 13094322377956920597215509541997540493466263550896158313340716530769<68> |