Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 304: | \[{5^{304}-1\over4}\] | 24 × 3 × 13 × 17 × 191 × 313 × 457 × 761 × 6271 × 11489 × 14897 × 19609 × 213029 × 3981071 × 4189729 × 4885168129<10> × 2864226125209369<16> × 11524380579073027969<20> × 21363981507860375753<20> × 21654472202540732126905077281<29> × 101284922414513827611672455293249<33> × 615506112662870422746709179075698731217<39> |