Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 246: | \[{12^{246}-1\over11}\] | 7 × 13 × 19 × 83 × 157 × 12301 × 1684652527 × 1977898057 × 2631304807 × 13657436942593<14> × 31383200376667<14> × 6768262271978677<16> × 47936660465075191<17> × 305115772972736748643<21> × 1371514197393197319841009039<28> × 97668924760419986491370101198871<32> × 198135604158907130782358027548853011255022891234380210220638216697707952818607731672501<87> |