Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 356: | \[{5^{356}-1\over4}\] | 22 × 3 × 13 × 179 × 9807089 × 14597959 × 834019001 × 8157179360521<13> × 39387996609449861<17> × 56522267529181963<17> × 231669654363683130095909<24> × 12094715786677995586454978647<29> × 20365288294844141313970353677<29> × 49294317887503248264083898511339595905014570264936419901218440567579801053361633437921664941413<95> |