tables > repunit > 20

Base 20 Repunits

Table

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

57: \[{20^{57}-1\over19}\] 19 × 229 × 421 × 75368484119<11> × 192696104561<12> × 1374892397251<13> × 207373637974370334920244263016739<33>

Index range: 57 – 57 << prev next >>