Steps to find Prime Factors of 2015 by Division Method

To find the primefactors of 2015 using the division method, follow these steps:

  • Step 1. Start dividing 2015 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 2015, which is 5. Divide 2015 by 5 to obtain the quotient (403).
    2015 ÷ 5 = 403
  • Step 3. Repeat step 1 with the obtained quotient (403).
    403 ÷ 13 = 31
    31 ÷ 31 = 1

So, the prime factorization of 2015 is, 2015 = 5 x 13 x 31.

Steps to find Prime Factors of 2015 by Factor Tree Method

We can follow the same procedure using the factor tree of 2015 as shown below:

So, the prime factorization of 2015 is, 2015 = 5 x 13 x 31.

Definition of Prime Factors?

In mathematics, prime numbers are defined as all those whole numbers greater than 1 that have only two factors, i.e. 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 2015 are 5 x 13 x 31.

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 2015 but not a prime factor of 2015.

Frequently Asked Questions

  • Which is the smallest prime factor of 2015?

    Smallest prime factor of 2015 is 5.

  • What are the factors of 2015?

    Factors of 2015 are 1 , 5 , 13 , 31 , 65 , 155 , 403 , 2015.

  • What is prime factorization of 2015 in exponential form?

    Prime factorization of 2015 in exponential form is 5 x 13 x 31.

  • Is 2015 a prime number or a composite number?

    2015 is a composite number.

  • Is 2015 a prime number?

    false, 2015 is not a prime number.

  • What is the sum of all prime factors of 2015?

    Prime factors of 2015 are 5 x 13 x 31. Therefore, their sum is 49.

  • What is the product of all prime factors of 2015?

    Prime factors of 2015 are 5 x 13 x 31. Therefore, their product is 2015.

  • What numbers are the prime factors of 2015?

    Prime factors of 2015 are 5 , 13 , 31.

  • What is the sum of all odd prime factors of 2015?

    Prime factors of 2015 are 5 , 13 , 31, out of which 5 , 13 , 31 are odd numbers. So, the sum of odd prime factors of 2015 is 5 + 13 + 31 = 49.