Even or odd checker
Check whether a number is even (divisible by 2) or odd (not divisible by 2).
Number
Even numbers
Even numbers are divisible by 2: ..., −4, −2, 0, 2, 4, 6, 8, ... They end in 0, 2, 4, 6, or 8. Zero is even.
Odd numbers
Odd numbers are NOT divisible by 2: ..., −3, −1, 1, 3, 5, 7, 9, ... They end in 1, 3, 5, 7, or 9.
Properties
Even + Even = Even. Odd + Odd = Even. Even + Odd = Odd. Even × anything = Even. Odd × Odd = Odd.
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