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Omni-MATH / Let n,m be positive integers. A set S of positive integers is called (n,m)-good, if: (1) m∈S; (2) for all a∈S, all divisors of a are also in S; (3) for all distinct a,b∈S, … · Discussion

Discussing Let n,m be positive integers. A set S of positive integers is called (n,m)-good, if: (1) m∈S; (2) for all a∈S, all divisors of a are also in S; (3) for all distinct a,b∈S, … · Omni-MATH

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