Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 87: | \[{5^{87}-1\over4}\] | 31 × 59 × 5569 × 6961 × 35671 × 22125996444329<14> × 28870194250662203210437116612769<32> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 87: | \[{5^{87}-1\over4}\] | 31 × 59 × 5569 × 6961 × 35671 × 22125996444329<14> × 28870194250662203210437116612769<32> |