Is 79 Prime?

A prime number is a natural number greater than 1 that has exactly two factors: 1 and itself.

To check if 79 is prime, we need to verify that no number from 2 to √79 divides it evenly.

Since 79 is odd, we only need to check odd divisors.

We only need to test up to √79 ≈ 8.89, which rounds down to 8.

If 79 has a factor larger than √79, it must also have a corresponding factor smaller than √79.

Testing: 3, 5, 7, ... up to 8

None of these numbers divide 79 evenly.

79 has no divisors between 2 and 8.

The only factors of 79 are 1 and 79 itself.

Therefore, 79 is a PRIME number!