Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[{12^{205}-1\over11}\] | 83 × 22621 × 50860501 × 1977898057 × 61708179551<11> × 109423722071<12> × 594458960231<12> × 1272168094511<13> × 59114755745455413432518951<26> × 97668924760419986491370101198871<32> × 802612658538701099788630604070125125897621<42> × 3471438046304917241193630670639053728389663689624971<52> |