document.write( "Question 19023: Does there exist a two-digit number 'ab' such that the difference between 'ab' and its reverse 'ba' is a prime number? \n" ); document.write( "

Algebra.Com's Answer #9155 by MelanieBCC(40) $\"\"$ $\"About$

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according to the commutative property of multiplication, a*b=b*a
\n" ); document.write( "the difference would be 0 for any values of a and b. \n" ); document.write( "

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