Prime Factors of 393

Steps to find Prime Factors of 393 by Division Method

To find the primefactors of 393 using the division method, follow these steps:

• Step 1. Start dividing 393 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 393, which is 3. Divide 393 by 3 to obtain the quotient (131).
  393 ÷ 3 = 131
• Step 3. Repeat step 1 with the obtained quotient (131).
  131 ÷ 131 = 1

So, the prime factorization of 393 is, 393 = 3 x 131.

Steps to find Prime Factors of 393 by Factor Tree Method

We can follow the same procedure using the factor tree of 393 as shown below:

So, the prime factorization of 393 is, 393 = 3 x 131.

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 393 are 3 x 131.

Properties of Prime Factors

• Prime factors are the set of factors that are unique to the number given.
• 2 is the only even prime factor any number can have.
• Two prime factors 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 393 but not a prime factor of 393.

Frequently Asked Questions

• Which is the smallest prime factor of 393?

  Smallest prime factor of 393 is 3.

• What is the prime factorization of 393?

  Prime factorization of 393 is 3 x 131.

• What is prime factorization of 393 in exponential form?

  Prime factorization of 393 in exponential form is 3 x 131.

• Is 393 a prime number or a composite number?

  393 is a composite number.

• Is 393 a prime number?

  false, 393 is not a prime number.

• How to find prime factorization of 393 easily?

  To find prime factorization of 393 easily you can refer to the steps given on this page step by step.

• Which is the largest prime factors of 393?

  The largest prime factor of 393 is 131.

• What is the product of all prime factors of 393?

  Prime factors of 393 are 3 x 131. Therefore, their product is 393.

• What is the sum of all odd prime factors of 393?

  Prime factors of 393 are 3 , 131, out of which 3 , 131 are odd numbers. So, the sum of odd prime factors of 393 is 3 + 131 = 134.