document.write( "Question 1171548: Last year Jason's age was a prime number. This year it is a square number. How old is he this year? \n" ); document.write( "

Algebra.Com's Answer #796452 by ikleyn(52778) $\"\"$ $\"About$

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document.write( "Let    be Jason's age this year (= current age).\r\n" );
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document.write( "The last year his age was  = p, some prime number.\r\n" );
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document.write( "But   = (n+1)*(n-1).\r\n" );
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document.write( "Since p is a prime number, it implies that n-1 = 1.\r\n" );
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document.write( "Hence, n = 2, and Jason's current age is   =  = 4 years.      ANSWER\r\n" );
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