Is 142 a Prime Number?

To determine whether the number 142 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 142 evenly, meaning without leaving a remainder. If such divisors exist, 142 is not a prime number; otherwise, it would be classified as prime.

To quickly check if 142 is a prime number:

Calculate the square root of 142

$\sqrt{142} = 11.92$

Prime numbers less than or equal to 11.92: 2, 3, 5, 7, 11

• 142 is divisible by number: 2, 71.

Since 142 is divisible by a number 2, 71 other than 1 and itself, so it is not a prime number