Posted by Abida on Thursday, January 13, 2011 at 12:10am.
How can I tell if 3360 is divisible by 24 without doing division?

Math  drwls, Thursday, January 13, 2011 at 2:13am
See if 3360 contains prime factors that can be multiplied together to get 24.
But dividing by 24 directly is easier.
3360 = 336*5*2
= 112*3*5*2
= 8*7*2*3*5*2
There is a factor of 8*3 = 24 in that group

Math  JeffGorden, Wednesday, February 9, 2011 at 2:56pm
Go back to school or use a calculator?
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