Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 279: | \[{28^{279}-1\over27}\] | 32 × 192 × 271 × 373 × 1117 × 2791 × 10789 × 47431 × 444979 × 1675799 × 14307617 × 104175305182941687128096479<27> × 9751283154942605850592828466642659513447<40> × 160281583784620677280319713020603382697107<42> × [2325968022556389866888578722073673352618105974325863861305322790972188367463495407386134773890870365703943347560569837776944186477310528400805502824783000629628565575463508070263708675454264253637759055649929722497867372791865831253508861336525601088049<253>] |