tables > repunit > base18

Base 18 Repunits

Table

Viewing: 21 – 21 << prev next >>

(available: 0-999)

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

21: \[{18^{21}-1\over17}\] 74 × 449 × 80207 × 156107192084257<15>

Index range: 21 – 21 << prev next >>