tables > repunit > 31

Base 31 Repunits

Table

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

56: \[{31^{56}-1\over30}\] 27 × 13 × 29 × 37 × 113 × 409 × 1129 × 7253 × 11971 × 13469 × 71821 × 277739477 × 917087137 × 36004683284137<14> × 152490484148901066281<21>

Index range: 56 – 56 << prev next >>