tables > factorial > f2-1

n!! - 1

Table

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

254: \[254!!-1\] 1049 × 15671810663<11> × 8036853829285798969<19> × 6765921674659452491497<22> × 573392322140233483492264916619317642226139501284173413444491127217645559932512303279422372009206623224419229691158241764931171644247599959105376549222169729910065864943825065763339168877608225040689<198>

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