Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 447: | \[{6^{447}-1\over5}\] | 43 × 38538553 × 971337783714019<15> × 300958963602513102193<21> × 1318713554713829548602512956686040272376450743377909<52> × 346354176050253827859677568458815390218235712359759067327<57> × 29553941320418260314821003628331397840834547738185803704531909190380657241<74> × 20850246170317843379344971725993466155048495714709548727703925404506909745806938099218868195945372443271889988046597915353<122> |