Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 128: | \[{3^{128}-1\over2}\] | 28 × 5 × 17 × 41 × 193 × 21523361 × 926510094425921<15> × 1716841910146256242328924544641<31> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 128: | \[{3^{128}-1\over2}\] | 28 × 5 × 17 × 41 × 193 × 21523361 × 926510094425921<15> × 1716841910146256242328924544641<31> |