tables > repunit > 21

Base 21 Repunits

Table

Viewing: 25 – 25 << prev next >>

(available: 0-999)

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

25: \[{21^{25}-1\over20}\] 52 × 40841 × 2031851 × 27385718497004633851<20>

Index range: 25 – 25 << prev next >>