Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 536: | \[{7^{536}-1\over6}\] | 25 × 52 × 269 × 1201 × 3217 × 20771 × 228337 × 4591913 × 147300841 × 206244761 × 39144122221793<14> × 27982218262152281<17> × 6557750853567755279<19> × 383942665465635068312581125821527<33> × 10052011757370829033540932021825161<35> × 512448845503044937001504898030276937169<39> × 1573744084294063562475602505413603199105388076450149833377<58> × 804306663862573118378356240292749022674214720777202165810697852844101<69> × 15816744205529466487663796803843948505059674943282418677011712206157431646857897717573550676477332842468821417836994102996680177<128> |