Is 558 a Prime Number?

To determine whether the number 558 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 558 evenly, meaning without leaving a remainder. If such divisors exist, 558 is not a prime number; otherwise, it would be classified as prime.

To quickly check if 558 is a prime number:

Calculate the square root of 558

$\sqrt{558} = 23.62$

Prime numbers less than or equal to 23.62: 2, 3, 5, 7, 11, 13, 17, 19, 23

• 558 is divisible by number: 2, 3, 31.

Since 558 is divisible by a number 2, 3, 31 other than 1 and itself, so it is not a prime number