Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 775: | \[{7^{775}-1\over6}\] | 311 × 2551 × 2801 × 21143 × 21391 × 21701 × 142601 × 23369351 × 1622982371 × 9254997611<10> × 31280679788951<14> × 3999088279399464409<19> × 1639774702452458221051<22> × 2816819700101195812722001<25> × 31728015189946773062954921268435825250349092899077924422648569887851893731<74> × 74385059300376030551162273511394747536845425876063214103152542232969044611789575292412223503057645130449201462056930657425602006527074977835441721919018248501763776907225454715161603377986672067585924908562299275021517279077748407576606006650000226371966175311246833572102933649185582376761317161069774990593225733309728430084695872213179432487881735208684862536664663033296662261687676955451019487773272071635484388627836050491879547534456838761501<449> |