Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 445: | \[{5^{445}-1\over4}\] | 11 × 71 × 179 × 8011 × 15131 × 26701 × 9807089 × 14597959 × 834019001 × 26698816301<11> × 8157179360521<13> × 101232724284574681<18> × 103738789930024471<18> × 231669654363683130095909<24> × 14542112049750708402496286411251<32> × 2060153825724616272421341918951044498583551948083109405118122926811<67> × 32085393863241948291693490049612490935678564655066981007103184666122637980391232936687499471<92> |