Question

Is 69 prime or composite

Answer 1

Hi!

Explanation:

This number is composite.

WHY?!

Because

1. 60 is divisible by 3

2. 9 is divisible by 3

Add them and get 69

69 is ALSO divisible by 3

therefore, it is composite

But what will we get if we divide 69 by 3?

Explanation:

If we divide 60 by 3, we get 20

If we divide 9 by 3, we get 3

So add 20+3=23

Yippee!

Now we have ALL the factors:

1,69,3,23

Answer 2

69 is a composite number. It wouldn't be a prime number because it would be a number that is only divisible by 1 and itself. In this case, it has more than two factors.

Even though its factors are 1 and itself, 69 is also divisible by 3 and 23.

Prime factorization:

1. 69 ÷ 23 = 3
2. 69 ÷ 3 = 23
3. 23 * 3 = 69