Number is divisible by 6 if it is even and is divisible by 3
For checking divisiblity for 11 you can add and subtract digits in an alternating pattern .
A number is completely divisible by 3 if the sum of its digits is divisible by 3.
Double the last digit and subtract it from a number made by the other digits. If the result is divisible by 7, then the number is divisible by 7
The last 2 digits are divisible by 4 then the number is divisible by 4
If the number is divisible by both 3 and 4 then the number is divisible by 12 .
The last digit is 0 or 5 for number to be divisible by 5.
If the last three digits are divisible by 8 then the number is divisible by 8.
The last digit must be even for divisiblity of 2.
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