Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 351: | \[{5^{351}-1\over4}\] | 19 × 31 × 79 × 109 × 271 × 829 × 4159 × 31051 × 7655311 × 223963741 × 305175781 × 608459012088799<15> × 937938782117311845318745554345005320717861<42> × 6475711850365695029787483033056414199292785571<46> × 1489161023006154219903790225805356280792802449809<49> × 128625980740150302845955193531591585859041755400069<51> |