Easily test if any number is evenly divisible by 6
Example
Is 947244 divisible by 6?
Yes
Step 1
Identify the ones digit
4
Step 2
If step 1 is even then add together each digit in the number
9+4+7+2+4+4 = 30
Step 3
Divide step 2 by 3
30 / 3 = 10
Step 4
The original number is evenly divisible by 6 if the result of step 3 is a whole number.
Yes
* If step 1 is odd then the original number is not evenly divisible by 6.