Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 64: | \[{9^{64}-1\over8}\] | 26 × 5 × 17 × 41 × 193 × 21523361 × 926510094425921<15> × 1716841910146256242328924544641<31> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 64: | \[{9^{64}-1\over8}\] | 26 × 5 × 17 × 41 × 193 × 21523361 × 926510094425921<15> × 1716841910146256242328924544641<31> |