tables > repunit > 20

Base 20 Repunits

Table

Viewing: 257 – 257 << prev next >>

(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 257: \[{20^{257}-1\over19}\] [1218864097234907320248115631670399030034420891217269095152185094820138206736168421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421052631578947368421<334>]

Index range: 257 – 257 << prev next >>