document.write( "Question 537760: The square of the nine-digit number 111 111 111 is an n-digit number.what is the value of n ? \n" ); document.write( "
Algebra.Com's Answer #352995 by Edwin McCravy(20065)\"\" \"About 
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The square of the nine-digit number 111 111 111 is an n-digit number.what is the value of n ?
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document.write( "Look at the pattern:\r\n" );
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document.write( "12 = 1, a 1 digit number\r\n" );
document.write( "112 = 121, a 3 digit number\r\n" );
document.write( "1112 = 12321, a 5 digit number\r\n" );
document.write( "11112 = 1234321, a 7 digit number\r\n" );
document.write( "111112 = 123454321, a 9 digit number \r\n" );
document.write( "1111112 = 12345654321, an 11 digit number \r\n" );
document.write( "11111112 = 1234567654321, a 13 digit number\r\n" );
document.write( "111111112 = 123456787654321, a 15 digit number\r\n" );
document.write( "1111111112 = 12345678987654321, a 17 digit number\r\n" );
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document.write( "It's the last one in the list, so n = 17.\r\n" );
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document.write( "Edwin
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