tables > repunit > 21

Base 21 Repunits

Table

Viewing: 66 – 66 << prev next >>

(available: 0-999)

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

66: \[{21^{66}-1\over20}\] 2 × 112 × 23 × 67 × 421 × 463 × 3499 × 6073 × 28513 × 33199 × 10362529 × 17513875027111<14> × 87989435079877<14> × 3955202198062795629622003<25>

Index range: 66 – 66 << prev next >>