document.write( "Question 750499: A phone number contains 7 digits. The product of these digits is an even perfect square. Given this, what can be the sum of these seven digits. \n" ); document.write( "
Algebra.Com's Answer #456639 by Alan3354(69443)\"\" \"About 
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A phone number contains 7 digits. The product of these digits is an even perfect square. Given this, what can be the sum of these seven digits.
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\n" ); document.write( "There are many possibilities.
\n" ); document.write( "eg, 122 2222 --> 13
\n" ); document.write( "422 2222 --> 16
\n" ); document.write( "499 9999 --> 58
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