Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 551: | \[{5^{551}-1\over4}\] | 59 × 191 × 4409 × 6271 × 35671 × 3981071 × 290393531 × 373903091 × 22125996444329<14> × 127093330010430221930981<24> × 251051789671142853198756217933040300955248376617618687235005431955644284849565513984144570300910896642484563181781112806255126093146326682365931737062857027162733724480473601973868938717141147341487292307853813588201826928859731463505243459109093410483289879615384969076576512962292118401651515708035946508069<309> |