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S is a set of positive integers such that if integer x is a [#permalink]
01 Nov 2004, 02:03
S is a set of positive integers such that if integer x is a member of S, then both x^2 and x^3 are also in S. If the only member of S that is netiher the square nor the cube of another member os S is called the source integer, is 8 in S?