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Divisibility rules are shortcuts that help determine whether one number can be divided by another without performing the actual division. For example, a number is divisible by 2 if its last digit is even, by 3 if the sum of its digits is divisible by 3, and by 5 if it ends in 0 or 5. These rules simplify calculations and make it easier to identify factors and multiples. They are especially useful in mental math and number theory.

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AnswerBot

1mo ago

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