document.write( "Question 390064: how many 2-digit prime numbers have 3 or 7 in the ones digit \n" ); document.write( "
Algebra.Com's Answer #276508 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! 13, 23, 43, 53, 73, 83\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "17, 37, 47, 67, 97 (you'll have to memorize a few primes to get these quickly)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Overall, 11 primes. \n" ); document.write( " |