document.write( "Question 1069699: Does 9^9^9 = 9^81 or does it equal 9^(387,420,489) ? \n" ); document.write( "

Algebra.Com's Answer #684850 by Edwin McCravy(20081) $\"\"$ $\"About$

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document.write( " is incorrect mathematical notation because \r\n" );
document.write( "exponentiation is not associative, and there is no rule\r\n" );
document.write( "in the order of operations that states which exponentiation we\r\n" );
document.write( "are to do first.  Therefore we must use parentheses to indicate\r\n" );
document.write( "which is meant.  We must either write this:\r\n" );
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document.write( "or this:\r\n" );
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document.write( "However the second one is so large that it would take 369693100 digits\r\n" );
document.write( "to write it.\r\n" );
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document.write( "Edwin

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