Prime Factors of 423

Steps to find Prime Factors of 423 by Division Method

To find the primefactors of 423 using the division method, follow these steps:

• Step 1. Start dividing 423 by the smallest prime number, i.e., 2, 3, 5, and so on. Find the smallest prime factor of the number.
• Step 2. After finding the smallest prime factor of the number 423, which is 3. Divide 423 by 3 to obtain the quotient (141).
  423 ÷ 3 = 141
• Step 3. Repeat step 1 with the obtained quotient (141).
  141 ÷ 3 = 47
  47 ÷ 47 = 1

So, the prime factorization of 423 is, 423 = 3 x 3 x 47.

Steps to find Prime Factors of 423 by Factor Tree Method

We can follow the same procedure using the factor tree of 423 as shown below:

So, the prime factorization of 423 is, 423 = 3 x 3 x 47.

What does Prime factor in mathematics mean?

Prime numbers, in mathematics are all those whole numbers greater than 1 having exactly two divisors that is 1 and the number itself. When we express any number as the product of these prime numbers than these prime numbers become prime factors of that number. Eg- Prime Factors of 423 are 3 x 3 x 47.

Properties of Prime Factors

• For any given number there is one and only one set of unique prime factors.
• 2 is the only even prime number. So, any given number can have only one even prime factor and that is 2.
• Two prime factors of a given number are always coprime to each other.
• 1 is neither a prime number nor a composite number and also 1 is the factor of every given number. So, 1 is the factor of 423 but not a prime factor of 423.

Frequently Asked Questions

• Which is the smallest prime factor of 423?

  Smallest prime factor of 423 is 3.

• What are the factors of 423?

  Factors of 423 are 1 , 3 , 9 , 47 , 141 , 423.

• What is prime factorization of 423 in exponential form?

  Prime factorization of 423 in exponential form is 3² x 47.

• Is 423 a prime number or a composite number?

  423 is a composite number.

• Is 423 a prime number?

  false, 423 is not a prime number.

• What is the sum of all prime factors of 423?

  Prime factors of 423 are 3 x 3 x 47. Therefore, their sum is 53.

• What is the product of all prime factors of 423?

  Prime factors of 423 are 3 x 3 x 47. Therefore, their product is 423.

• What numbers are the prime factors of 423?

  Prime factors of 423 are 3 , 3 , 47.

• What is the sum of all odd prime factors of 423?

  Prime factors of 423 are 3 , 3 , 47, out of which 3 , 3 , 47 are odd numbers. So, the sum of odd prime factors of 423 is 3 + 3 + 47 = 53.