# 4.7: Telling If a Number is Even or Odd

- Page ID
- 14440

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If the product of the board width and height is divided by two and has a remainder of 0 (the % **modulus operator** evaluates what the remainder is) then the number is even. Even numbers divided by two will always have a remainder of zero. Odd numbers divided by two will always have a remainder of one. This is a good trick to remember if you need your code to tell if a number is even or odd:

>>> isEven = someNumber % 2 == 0 >>> isOdd = someNumber % 2 != 0

In the above case, if the integer in `someNumber`

was even, then `isEven`

will be `True`

. If it was odd, then `isOdd`

will be `True`

.