Is 458 a Prime Number?

To determine whether the number 458 is a prime number, it is necessary to check if it has any divisors besides 1 and itself. This involves checking if there are any other numbers that can divide 458 evenly, meaning without leaving a remainder. If such divisors exist, 458 is not a prime number; otherwise, it would be classified as prime.

To quickly check if 458 is a prime number:

Calculate the square root of 458

$\sqrt{458} = 21.40$

Prime numbers less than or equal to 21.40: 2, 3, 5, 7, 11, 13, 17, 19

• 458 is divisible by number: 2, 229.

Since 458 is divisible by a number 2, 229 other than 1 and itself, so it is not a prime number