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Explain the divisibility rule of 6.
Divisibility rule of 6:
- Numbers that are divisible by both 2 and 3 are divisible by 6.
- That is, if the last digit of the given number is even and the sum of its digits is a multiple of 3, then the given number is also a multiple of 6.
Example:
786
The number is divisible by 2 as the last digit is 6.
The sum of digits is $7+8+6 = 21$, which is also divisible by 3.
Hence 786 is divisible by 6.
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