Base 21 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | 43 × 67 × 463 × 631 × 3319 × 4789 × 6427 × 227633407 × 6225803431<10> × 13030208254603<14> × 17513875027111<14> × 16912366483493251<17> × 102176232786629233<18> × 3955202198062795629622003<25> × 2665107906066773206783173754096081<34> × 39824892937303186001525100993399811<35> × 82721492925050166710438512180782661<35> × 8114043796984260128688250942595370463528745698590566713167179808898768806271729<79> |