Write a program that reads a whole number and says if it is even or odd…

Plan. A number is even when the remainder after dividing by 2 is 0.

1. n = int(input("Type a whole number: "))
2. if n % 2 == 0: shows even.
3. else: shows odd.

Check. $14 \div 2$ leaves $0$, so $14$ is even. $27 \div 2$ leaves $1$, so $27$ is odd.