Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 149: | \[{5^{149}-1\over4}\] | 35032461608120426773093239582247903282006548546912894293926707097244777067146515037165954709053039550781<104> |