Steps to find Prime Factors of 392 by Division Method

To find the primefactors of 392 using the division method, follow these steps:

  • Step 1. Start dividing 392 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 392, which is 2. Divide 392 by 2 to obtain the quotient (196).
    392 ÷ 2 = 196
  • Step 3. Repeat step 1 with the obtained quotient (196).
    196 ÷ 2 = 98
    98 ÷ 2 = 49
    49 ÷ 7 = 7
    7 ÷ 7 = 1

So, the prime factorization of 392 is, 392 = 2 x 2 x 2 x 7 x 7.

Steps to find Prime Factors of 392 by Factor Tree Method

We can follow the same procedure using the factor tree of 392 as shown below:

So, the prime factorization of 392 is, 392 = 2 x 2 x 2 x 7 x 7.

How do you define Prime Factors of a number?

Prime numbers, in mathematics are all those natural numbers greater than 1 that have exactly 2 factors which are 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 392 are 2 x 2 x 2 x 7 x 7.

Properties of Prime Factors

  • For any given number there is one and only one set of unique prime factors.
  • Any number can have only 1 even prime factor and that is number 2.
  • Two prime factors are always coprime to each other.
  • 1 is the factor of any given number, but 1 is neither a prime number nor a composite number. So, 1 is the factor of 392 but not a prime factor of 392.

Frequently Asked Questions

  • Which is the smallest prime factor of 392?

    Smallest prime factor of 392 is 2.

  • Is 392 a perfect square?

    No 392 is not a perfect square.

  • What is the prime factorization of 392?

    Prime factorization of 392 is 2 x 2 x 2 x 7 x 7.

  • What is prime factorization of 392 in exponential form?

    Prime factorization of 392 in exponential form is 23 x 72.

  • Is 392 a prime number or a composite number?

    392 is a composite number.

  • Which is the largest prime factors of 392?

    The largest prime factor of 392 is 7.

  • What is the product of all prime factors of 392?

    Prime factors of 392 are 2 x 2 x 2 x 7 x 7. Therefore, their product is 392.

  • What numbers are the prime factors of 392?

    Prime factors of 392 are 2 , 2 , 2 , 7 , 7.

  • Is there any even prime factor of 392?

    Yes there is a even prime factor of 392.