Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 457: | \[{5^{457}-1\over4}\] | 13711 × 455162861 × 137015205580881761325799<24> × 476936039068611477153641752340911<33> × 26628842186290124810309584480767097781<38> × 36725891754169847010253630086789677124279381501342379<53> × 484107604366924093766694867388794373267167694527843668964981659<63> × 34793698453153111728444033239693392566989856921455623446989152943233246691255224351654433261836439<98> |