Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 560: | \[{7^{560}-1\over6}\] | 26 × 53 × 11 × 17 × 29 × 41 × 71 × 113 × 191 × 281 × 337 × 421 × 449 × 673 × 881 × 911 × 1201 × 2129 × 2801 × 4021 × 4733 × 169553 × 517553 × 542081 × 12128131 × 39648001 × 515717329 × 603926681 × 2127431041 × 13564461457<11> × 77192844961<11> × 102314938321<12> × 810221830361<12> × 18690488255321<14> × 21535258550401<14> × 142256806230113<15> × 19584845505919961<17> × 2312581841562813841<19> × 9691924412174719842472801<25> × 1347698311896398262115524401787850534828614953985505327369990790423147269305628801<82> × 187246513381973352753553187144850035839198083218975187641193966147417700409628519189575132778791603854640588491875973092021219963675664801<138> |