Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 225: | \[{13^{225}-1\over12}\] | 32 × 61 × 181 × 701 × 1951 × 4651 × 9851 × 30941 × 161971 × 1609669 × 1711042515451<13> × 2752135920929651<16> × 2997534286720771645924621<25> × 185129510660424877123166434146327362331151<42> × 68908867770552593063187730578864385270746601<44> × 399637618032860624803042611898600605680096732527640012008469469655061307261451<78> |