Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 406: | \[{7^{406}-1\over6}\] | 23 × 292 × 59 × 113 × 911 × 4733 × 60089 × 699539 × 10931551 × 127540261 × 252777631 × 71316922984999<14> × 640915395596561<15> × 402488219476647465854701<24> × 145916619612283783386370190568409<33> × 29578629246544162641634423506238267<35> × 1158560595990812530792619356788467777477674946730941<52> × 27561825077977067991406396148381239250505396358671209<53> × 295427580543981044508742175251656510425218717654351011099430750210650097<72> |