Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 582: | \[{20^{582}-1\over19}\] | 32 × 7 × 127 × 389 × 421 × 12728923 × 1002204583 × 9446725241<10> × 53678965801<11> × 4897732241509<13> × 3458308355911001<16> × 1814565957918978949<19> × 4382838734483828216167<22> × 1551278457001703299460425309<28> × 375921460689078723273556870099<30> × 49613947804350394354357836874439<32> × 2645332912014287669339495089951567<34> × 24087249964807710583843491880243798561<38> × 4268250703588644617929155594605677521016797237122821<52> × [784968560917375684995516362954323362826556390103882161740558712549563693927649415233679881464012063322909985226051113887340957939440707965242346369036980500395966476490540739446951650925327697023944139854000701<210>] × [118126417385381852631173693914068054831898913787538180757853516885435509550700785372895604675194407174469485032589302290461443626297281390372188584791618744225218217752826707554184039593534753420761379706415874948945078681<222>] |