document.write( "Question 841558: For how many three-element sets of positive integers is it true that their product is 2013? \n" ); document.write( "
Algebra.Com's Answer #507005 by richard1234(7193)\"\" \"About 
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2013 = 3*11*61\r
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\n" ); document.write( "\n" ); document.write( "If none of the elements is 1, there is one set ({3,11,61})\r
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\n" ); document.write( "\n" ); document.write( "If exactly one of the elements is 1, there are three sets ({3, 11*61}, {11, 3*61}, {61, 3*11}).\r
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\n" ); document.write( "\n" ); document.write( "If exactly two of the elements are 1, there is one set ({1, 1, 2013}).\r
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\n" ); document.write( "\n" ); document.write( "# sets = 1+3+1 = 5.
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