Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
124: | \[{5^{124}-1\over4}\] | 22 × 3 × 13 × 1303 × 1861 × 21207101 × 28086211607<11> × 625552508473588471<18> × 8124604717965111529<19> × 102651353523520067851969<24> |