Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 207: | 19 × 31 × 139 × 829 × 6211 × 8971 × 10047916621<11> × 332207361361<12> × 598761682261<12> × 8868050880709<13> × 18133283200612459389452401756767476520342710009526710760461219593942056686456982781<83> |