Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 339: | \[{5^{339}-1\over4}\] | 31 × 2939 × 6329 × 7459 × 129499 × 308491 × 234303241 × 304247586761<12> × 2084303944451<13> × 22628763748399<14> × 620216264269531<15> × 204867325883294509<18> × 8237123176890810696379<22> × 24528557597575188455414632667311<32> × 15052022045601528681443770626748130187061600001675137160046152558672964525299173759<83> |