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[–] 7 points 1 year ago (9 children)
  • [–] 10 points 1 year ago* (6 children)

    x!_(n) is the product of the positive numbers congruent to x (mod n) and less than or equal to x. put more simply x*(x-n)*(x-2n)...

    so 10!!! = 10*7*4*1

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  • [–] 5 points 1 year ago (5 children)