144 ÷ 4 = 36 (remainder = 0). So, 144 is divisible by 4 and is a multiple of 4.
144 ÷ 5 = 28 (remainder = 4). So, 144 is not divisible by 5 and is not a multiple of 5.What are the Divisibility Rules?
The following table gives criteria or conditions to test divisibility of any number by the numbers listed in the first column. This is useful when testing the divisibility of large numbers and to determine whether a number is a multiple of another.
A number is divisible by 2 if its last digit is 0, 2, 4, 6 or 8.
Check whether 171 is a multiple of 9.
Sum of digits 1 + 7 + 1 = 9
9 ÷ 9 = 1
So, 171 is a multiple of 9
The following video describes the rules of divisibility
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