tables > factorial > f2-1

n!! - 1

Table

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

* 317: \[317!!-1\] 2 × 919 × 16747 × 3857322927649<13> × 175526985106509876013<21> × [4619321872549782187500130060925037223213117460188139474264051804249793703301828211077170990672221242368270999355161816757219418270232035680041866930452540649096329246980832591608729784021650014059425085722543790314111689317733697858754167865833089403552605912647457508437476254161524679607<289>]

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