Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 636: | \[{19^{636}-1\over18}\] | 23 × 3 × 5 × 73 × 132 × 107 × 127 × 181 × 769 × 1697 × 3181 × 18869 × 1226209 × 87097657 × 4739153047<10> × 104095533511<12> × 323930821687153<15> × 4086918000521042669809<22> × 2551089855701675251204783<25> × 37334173314913678536474517<26> × 210146007928707977384770009<27> × 135818088892456368195992838307<30> × 16897922306017996133031782037481939<35> × 4480114312426490346765956323940058045092900993585044625434355666103979771820419821782239<88> × 609192112936602057949004395403849357673993948220985448172058897355113644265123535598457409139844299<99> × 304608770494258116955904675708809486196490095946728010907908555262777369830710484902087388474935136518254221884600714161059277<126> × [30156899485839359169169399067233080115043265344578836639751341328949033121139230511689926064912089553594968655897199360056545027973081475799749730410611724016752799745340228040685998105134082238462778837272061353742467865403274756684940958596834486242322889476741<263>] |