one integer is divisible by another non-zero integer if the quotient is an integer with remainder of zero. For example, 12 is divisible by 3 because 12 ÷ 3 is an integer, namely 4.

One number is divisible by another if the remainder is zero into another number, the dividend.

a term describing a number capable of being divided into equal parts without a remainder.

If a number has a whole number answer when divided by a second number, the first number is divisible by the second number; x is divisible by y if and only if x = qy where y is a whole number.