Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 224: | \[{7^{224}-1\over6}\] | 27 × 52 × 17 × 29 × 113 × 337 × 353 × 449 × 673 × 911 × 1201 × 2129 × 4733 × 169553 × 517553 × 39648001 × 515717329 × 13564461457<11> × 47072139617<11> × 21535258550401<14> × 142256806230113<15> × 1347137238494236011616409424554801312589016593551210172009792771818298600357148801<82> |