Is 864 a Prime Number?

To determine whether the number 864 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 864 evenly, meaning without leaving a remainder. If such divisors exist, 864 is not a prime number; otherwise, it would be classified as prime.

To quickly check if 864 is a prime number:

Calculate the square root of 864

$\sqrt{864} = 29.39$

Prime numbers less than or equal to 29.39: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

• 864 is divisible by number: 2, 3.

Since 864 is divisible by a number 2, 3 other than 1 and itself, so it is not a prime number