even number

number that is exactly divisible by two; equal number

In mathematics, the parity of an object refers to whether it is even or odd. The formal definition of an odd number is an integer of the form n=2k +1, where k is an integer. The definition of an even number is n=2k where k is an integer.Any integer is either even or odd according to the following rules: If it is a multiple of two, it is an even number; otherwise, it is an odd number. Examples of even numbers are −4, 8, 0, and 42. Examples of odd numbers are −3, 9, 1, and 5. The set of even numbers can be written:Evens = 2Z = {..., −6, −4, −2, 0, 2, 4, 6, ...}.
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even number
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