Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 270: | \[{28^{270}-1\over27}\] | 33 × 11 × 192 × 29 × 31 × 37 × 109 × 127 × 163 × 271 × 541 × 757 × 811 × 1801 × 3061 × 3511 × 4621 × 6211 × 15991 × 53951 × 102547 × 208441 × 444979 × 637421 × 691651 × 734941 × 7302331 × 25549561 × 48403441 × 84673681 × 2320484707 × 551640495331<12> × 2714261904253<13> × 5220455384797651<16> × 91140307249283821<17> × 68948693997660959163751<23> × 1114029602365666612314868561<28> × 3593689985668141776715473099227801881861<40> × 1319196612959329715833842699072418694999538124831<49> × 406385801136251056203404767327746977944898798686435295642111734855861<69> |