Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 445: | \[{20^{445}-1\over19}\] | 11 × 61 × 179 × 251 × 335939325419<12> × 1547547240361<13> × 141133612785544741<18> × 7748984434864011077311<22> × 133724350874825473368329<24> × 15795790452251584798125198104621<32> × 261786786940548104294757775699593263493783883864102345432362297509<66> × [13956941535463438300198516434801622642348857568673236535588926722809264602961013624125625145890621146392120221730578115565157751658451538320015801501920288455754012153316611754448585283305801<191>] × 361472567860517792888028380407770198661863205191821354441211372366868813384862333614254705559025856797276248660942993298741464463081172497555717125444792393034881436590278339961552014040015627076411<198> |