tables > repunit > 31

Base 31 Repunits

Table

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

72: \[{31^{72}-1\over30}\] 27 × 32 × 72 × 13 × 19 × 37 × 73 × 331 × 409 × 577 × 1129 × 3637 × 81343 × 922561 × 1536553 × 1538083 × 4683817 × 512616735577<12> × 852890113921<12> × 1814503763676130449408979921<28>

Index range: 72 – 72 << prev next >>