More Divisibility Rules - 4

If two numbers are divisible by a number,

their difference is also divisible by the number

16 & 20 is divisible by 4

Difference = 20 − 16 = 4

∴ 4 is also divisible by 4

36 & 78 are divisible by 6

Difference = 78 − 36 = 42

∴ 42 is also divisible by 6

100 & 25 are divisible by 5

Difference = 100 − 25 = 75

∴ 75 is also divisible by 5

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