Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 226: | \[{5^{226}-1\over4}\] | 2 × 3 × 227 × 2939 × 6329 × 129499 × 308491 × 1387189 × 12249784663<11> × 304247586761<12> × 2084303944451<13> × 620216264269531<15> × 8237123176890810696379<22> × 416072767607140626504228216362738974973739625245422473584889<60> |