Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 267: | \[{5^{267}-1\over4}\] | 31 × 179 × 1069 × 1133149 × 1652731 × 9807089 × 14597959 × 834019001 × 8157179360521<13> × 18484574880511<14> × 369718501929859<15> × 231669654363683130095909<24> × 92358800604937937130124908509003639071<38> × 666305263236528922424959643161677073370809<42> |