tables > factorial > f2-1

n!! - 1

Table

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

* 456: \[456!!-1\] 78087592808212979<17> × [813722471260169288361139383234756092389047602283306242284784112942887454508623824146272928188136030049797807514855090978442367978941799466398331167329344373089266352573688121548708545068236252951798334983684184419523830380224617090856104116295286173444909506621619722058625539118794743331770228798325938789768360369059312704272313898947341848207587675505283258828763063598712968027874922221314226116987070720585050928646255322376668919194064643296599068424126669705882962861235069978529245381<492>]

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