Prime Factors of 991

Steps to find Prime Factors of 991 by Division Method

To find the primefactors of 991 using the division method, follow these steps:

• Step 1. Start dividing 991 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 991, which is 991. Divide 991 by 991 to obtain the quotient (1).
  991 ÷ 991 = 1
• Step 3. Repeat step 1 with the obtained quotient (1).

So, the prime factorization of 991 is, 991 = 991.

Steps to find Prime Factors of 991 by Factor Tree Method

We can follow the same procedure using the factor tree of 991 as shown below:

So, the prime factorization of 991 is, 991 = 991.

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 991 are 991.

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 991 but not a prime factor of 991.

Frequently Asked Questions

• Which is the smallest prime factor of 991?

  Smallest prime factor of 991 is 991.

• What are the factors of 991?

  Factors of 991 are 1 , 991.

• What is prime factorization of 991 in exponential form?

  Prime factorization of 991 in exponential form is 991.

• Is 991 a prime number or a composite number?

  991 is a prime number.

• Is 991 a prime number?

  true, 991 is a prime number.

• What is the sum of all prime factors of 991?

  Prime factors of 991 are 991. Therefore, their sum is 991.

• What is the product of all prime factors of 991?

  Prime factors of 991 are 991. Therefore, their product is 991.

• What numbers are the prime factors of 991?

  Prime factors of 991 are 991.

• What is the sum of all odd prime factors of 991?

  Prime factors of 991 are 991, out of which 991 are odd numbers. So, the sum of odd prime factors of 991 is 991 = 991.