Recent content by dessy

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    Graduate How to Prove that (n-1)!= 0 (mod n) for Composite n?

    If n is composite, n>4, prove that (n-1)!= 0 (mod n). = is congruent
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    Undergrad Is 1/5*n^5 + 1/3*n^3 + 7/15*n Always an Integer for All n?

    Thanks, Morphism
  3. D

    Undergrad Is 1/5*n^5 + 1/3*n^3 + 7/15*n Always an Integer for All n?

    Prove that 1/5*n^5+1/3*n^3+7/15*n is an integer for all integers n.