Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 73: | \[{15^{73}-1\over14}\] | 5111329463430071646630167819950683399621676569261698373582346123709742512021745954241<85> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 73: | \[{15^{73}-1\over14}\] | 5111329463430071646630167819950683399621676569261698373582346123709742512021745954241<85> |