tables > factorial > f2+1

n!! + 1

Table

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

* 256: \[256!!+1\] 305508407 × 33480607981<11> × [12828711454235952113232575527833622341377610276692773661010530189889302850174789005223816480526493994440613534801229800545215492850281666363288739208455880570514441999771054438504089787072399342857944760566090109197763728115538079153603<236>]

Index range: 256 – 256 << prev next >>