document.write( "Question 376473: Test each of these numbers for divisibility by 3, 5, and 11 without using a calculator:
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document.write( "Explain your reasoning.\r
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document.write( "a. 56743
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document.write( "b. 69916800\r
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Algebra.Com's Answer #267831 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! a) Digits add to \n" ); document.write( "Doesn't end in 0 or 5 so no chance with 5. \n" ); document.write( "Also not divisible by 11. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "b) Digits add to \n" ); document.write( "Ends in 0 so it's divisible by 5. \n" ); document.write( "Not divisible by 11. \n" ); document.write( " |