Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 140: | 52 × 11 × 29 × 61 × 71 × 113 × 157 × 211 × 281 × 2521 × 13007 × 14561 × 35771 × 53951 × 59221 × 84961 × 206501 × 637421 × 749729 × 924841 × 4422461 × 25917641 × 1100860153 × 31384274881<11> × 2005875869991701<16> × 99885743242098024883367081<26> × 121472104014598896667779464986019001665861519088940386401<57> |