Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{8^{67}-1\over7}\] | 1609 × 22111 × 193707721 × 761838257287<12> × 87449423397425857942678833145441<32> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{8^{67}-1\over7}\] | 1609 × 22111 × 193707721 × 761838257287<12> × 87449423397425857942678833145441<32> |