Is 429 a Prime Number?

To determine whether the number 429 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 429 evenly, meaning without leaving a remainder. If such divisors exist, 429 is not a prime number; otherwise, it would be classified as prime.

To quickly check if 429 is a prime number:

Calculate the square root of 429

$\sqrt{429} = 20.71$

Prime numbers less than or equal to 20.71: 2, 3, 5, 7, 11, 13, 17, 19

• 429 is divisible by number: 3, 11, 13.

Since 429 is divisible by a number 3, 11, 13 other than 1 and itself, so it is not a prime number