Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 189: | \[{5^{189}-1\over4}\] | 19 × 31 × 109 × 271 × 379 × 829 × 4159 × 19531 × 31051 × 280729 × 519499 × 2161279 × 23792163643711<14> × 305921358183421<15> × 10072805480453583986931919773741297628474934622266057811409981<62> |