no.. heres a trick: if you add together the numbers (5+2+4) and that answer equals a number that is divisible by 3 then the number is divisible by three
5+2+4=11
11 is not divisible by 3
therefore, 524 is not divisible by 3
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Yes. 524 divided by 4 is 131.
It is 3 6 9
It is divisible by 3 (3*125 = 375).
678 is divisible by 3.
The divisibility rule for 3 is add up the digits and check for divisibility. 7+2+4 = 13.13 is not evenly divisible by 3 so 724 is not divisibleby 3.