tables > repunit > base20

Base 20 Repunits

Table

Viewing: 18 – 18 << prev next >>

(available: 0-999)

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

18: \[{20^{18}-1\over19}\] 33 × 7 × 127 × 307 × 421 × 69481 × 64008001

Index range: 18 – 18 << prev next >>