Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
117: | \[{5^{117}-1\over4}\] | 19 × 31 × 79 × 829 × 223963741 × 305175781 × 608459012088799<15> × 937938782117311845318745554345005320717861<42> |