# Even Numbers (Integers)

A number (integer) is **even** if it is divisible by 2.

**Example 1.** Determine whether 10 is an even number.

10 is even because $$$\frac{{10}}{{2}}=5$$$ and 5 is an integer number.

Another example.

**Example 2.** Determine whether 15 is even.

15 is odd, because $$${15}={2}\cdot{7}+{1}$$$ and remainder is not 0.

Now, do a couple of exercises.

**Exercise 1.** Determine whether 35 is an even number.

35 is not divisible by 2, because $$${35}={2}\cdot{17}+{1}$$$ and remainder is not 0.

So, it is not an even number.

Another exercise.

**Exercise 2.** Determine whether 100 is even.

100 is even because $$$\frac{{100}}{{2}}={50}$$$ and 50 is an integer number.