Question

What's the divisibility rule of 15? Please let fast.. It's urgent

Answer 1

Divisibility rule for 15

Divisibility by 15 can be tested by combining the rules for 3 and 5. The rule for 3 is that the sum of all the digits in the number is a multiple of 3. The rule for 5 is that the number ends in 5 or 0. If both of these tests work, the number must be a multiple of 15.
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Answer 2

The divisibility of 15 is that it must be divisible by 3 and 5

5 divisibility : the last digit must have 0 or 5

3 divisibility : the sum of digits is divisible by 3


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