tables > factorial > f2-1

n!! - 1

Table

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

208: \[208!!-1\] 211 × 105992873398606168049<21> × 2025512113041070487203<22> × 4611278448524588883036490406628950433524574008751337034686777339028969891397676122759276280431731586732428240320288874225056186464063661606358182212339847<154>

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