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Divisibility Rules

When learning about multiples and divisors, there are several rules of divisibility that a student may encounter. Below, we list some famous rules of divisibility:

A number is divisible by...

2: If the last digit is even.

3: If the sum of digits is a multiple of 3.

4: If the last 2 digits are a multiple of 4.

5: If the last digit is either 0 or 5.

6: If it is divisible by both 2 and 3

8: If the last 3 digits are a multiple of 8.

9: If the sum of digits is a multiple of 9.

10: If the last digit is 0.

11: If the alternating sum of digits is a multiple of 11.

Note by Arron Kau
2 years, 5 months ago

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