Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 83: | \[{5^{83}-1\over4}\] | 20515111 × 1431185706701868962383741<25> × 88040095945103834627376781<26> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 83: | \[{5^{83}-1\over4}\] | 20515111 × 1431185706701868962383741<25> × 88040095945103834627376781<26> |