Posted by **mandy** on Wednesday, April 2, 2014 at 12:06pm.

Given a set with n elements has 2^n subsets.Find the number of subsets for set A={2,3,5,7,11}.

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**Steve**, Wednesday, April 2, 2014 at 12:23pm
well, how many elements in A?

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**mandy**, Wednesday, April 2, 2014 at 12:35pm
Oh thanks..its 2^5=32..

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**Steve**, Wednesday, April 2, 2014 at 12:59pm
correct. The power set of A P(A) is the set of all subsets of A. These would be

{}, {2}, {3},...{2,3},{2,5},... and so on up to A itself.

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