If the last two digits of a number are a multiple of 25 - i.e., 00, 25, 50, or 75 - then the number is divisible by 25. This is related to the fact that 100 is a multiple of 25.
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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.