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## Answers

**A number is divisible by 12 if the number is divisible by both 3 and 4.**

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A number is divisible by 3 if the sum of the digits is divisible by 3.

Ex. 648 ⇒ 6 + 4 + 8 =18; 18 is divisible by 3

A number is divisible by 4 if the last two digits is divisible by 4.

Ex. 6

**48**⇒ 48 is divisible by 4.

The number

**648**is both divisible by 3 and 4, therefore, it is also

**divisible by 12.**