The divisibility rule for 22 is that the number is divisible by 2 and by 11.
Divisibility by 2 requires that the number ends in 0, 2, 4, 6 or 8.
Divisibility by 11 requires that the difference between the sum of the the digits in odd positions and the sum of all the digits in even positions is 0 or divisible by 11.
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By tautology. If it did not work, it would not be a divisibility rule!
What is the divisblity rule by 8
There is no easy rule for divisibility by 34.
Able to Be Divided
Division by zero is undefined.