Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 284: | \[{5^{284}-1\over4}\] | 22 × 3 × 13 × 569 × 853 × 4261 × 72497533 × 8367932201<10> × 200771218157<12> × 554474665573<12> × 1095832589179957<16> × 5747338499820296170481<22> × 288231038713838413442281<24> × 1092822132265806461035989014934429610237<40> × 18607929421228039083223253529869111644362732899<47> |