tables > factorial > f2-1

n!! - 1

Table

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

* 258: \[258!!-1\] 197 × 41804108823517<14> × [4110872892911079558413334423487228233399781177101599725964244130364252368162015524015599580774390198992414124887932161969613517615922807086321802423170675721560567740668646025308824213754069087183610865410362401837951573471710467987625230351<241>]

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