Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 817: | \[{3^{817}-1\over2}\] | 431 × 1597 × 363889 × 35916262161133<14> × 380808546861411923<18> × 59346557047682110885478903<26> × [1580849942462915652815232703984668851127577716546025409767706847927768504239258359548867714253315283353070403900866224089588625360209482164565840447527703017251513010464831490211485936698570587095776470275322318967589963542140029599359110435977472796067538996122131286437380619992197352190729263294174563970031283716180411<322>] |