Prime Factors of 351

Steps to find Prime Factors of 351 by Division Method

To find the primefactors of 351 using the division method, follow these steps:

• Step 1. Start dividing 351 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 351, which is 3. Divide 351 by 3 to obtain the quotient (117).
  351 ÷ 3 = 117
• Step 3. Repeat step 1 with the obtained quotient (117).
  117 ÷ 3 = 39
  39 ÷ 3 = 13
  13 ÷ 13 = 1

So, the prime factorization of 351 is, 351 = 3 x 3 x 3 x 13.

Steps to find Prime Factors of 351 by Factor Tree Method

We can follow the same procedure using the factor tree of 351 as shown below:

So, the prime factorization of 351 is, 351 = 3 x 3 x 3 x 13.

Introduction to Prime Factors?

In mathematics, prime numbers are defined as all those natural numbers greater than 1 that has only two divisors one being number 1 and the other being the number itself. When we express any number as the products of these prime numbers than these prime numbers become prime factors of that number. Eg- Prime Factors of 351 are 3 x 3 x 3 x 13.

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 351 but not a prime factor of 351.

Frequently Asked Questions

• Which is the smallest prime factor of 351?

  Smallest prime factor of 351 is 3.

• What are the factors of 351?

  Factors of 351 are 1 , 3 , 9 , 13 , 27 , 39 , 117 , 351.

• What is prime factorization of 351 in exponential form?

  Prime factorization of 351 in exponential form is 3³ x 13.

• Is 351 a prime number or a composite number?

  351 is a composite number.

• Is 351 a prime number?

  false, 351 is not a prime number.

• What is the sum of all prime factors of 351?

  Prime factors of 351 are 3 x 3 x 3 x 13. Therefore, their sum is 22.

• What is the product of all prime factors of 351?

  Prime factors of 351 are 3 x 3 x 3 x 13. Therefore, their product is 351.

• What numbers are the prime factors of 351?

  Prime factors of 351 are 3 , 3 , 3 , 13.

• What is the sum of all odd prime factors of 351?

  Prime factors of 351 are 3 , 3 , 3 , 13, out of which 3 , 3 , 3 , 13 are odd numbers. So, the sum of odd prime factors of 351 is 3 + 3 + 3 + 13 = 22.