Divisibility rules are a set of guidelines or shortcuts that help determine whether one number is divisible by another without actually performing the division operation. Divisibility rules exist for various divisors, such as 2, 3, 4, 5, 6, 9, 10, 11, and more. Here are a few common divisibility rules:Divisibility by 2: A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).Divisibility by 3: A number is divisible by 3 if the sum of its digits is divisible by 3.Divisibility by 4