Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
237: | \[{6^{237}-1\over5}\] | 43 × 15643 × 1147240288157<13> × 26283825237209622143<20> × 197531251446059329471533015409<30> × 393024899619859590739537077043657<33> × 3354972728520006336477396236109856133718254143010542857826856245966015607259426230641<85> |