Rule for 6 - if the number is divisible by 2 and 3 it is divisible by 6.

example1:

6643854 = it is divisible by 2

6643854 = 36 = 9, 9 is divisible by 3

So 6643854 is divisible by 6 because it is BOTH divisible by 2 and 3.

example2:

5466495 = it is not divisible by 2, don't even try 3 because it is not divisible by 2.

So 5466495 is not divisible by 6.

Check out this LINK.

Good job but how did you know 6643854 is equal to 36

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