document.write( "Question 269078: What number is a two-digit prime number between 1 and 50 whose sum is 8 and product is 7? \n" ); document.write( "
Algebra.Com's Answer #197217 by vksarvepalli(154)\"\" \"About 
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let the required number be ab\r
\n" ); document.write( "\n" ); document.write( "we have a<=4 and b should be 1 or 3 or 7 since it is a prime no. and the sum of the digits is 8 and product 7\r
\n" ); document.write( "\n" ); document.write( "so if b=1, a should be 7 but a is <=5\r
\n" ); document.write( "\n" ); document.write( "if b=3 then a should be 5 but not possible\r
\n" ); document.write( "\n" ); document.write( "if b=7 then a=1 and also their product will be 7\r
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\n" ); document.write( "\n" ); document.write( "so the answer is 17
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