Prime Factors of 387

Steps to find Prime Factors of 387 by Division Method

To find the primefactors of 387 using the division method, follow these steps:

• Step 1. Start dividing 387 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 387, which is 3. Divide 387 by 3 to obtain the quotient (129).
  387 ÷ 3 = 129
• Step 3. Repeat step 1 with the obtained quotient (129).
  129 ÷ 3 = 43
  43 ÷ 43 = 1

So, the prime factorization of 387 is, 387 = 3 x 3 x 43.

Steps to find Prime Factors of 387 by Factor Tree Method

We can follow the same procedure using the factor tree of 387 as shown below:

So, the prime factorization of 387 is, 387 = 3 x 3 x 43.

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 387 are 3 x 3 x 43.

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 387 but not a prime factor of 387.

Frequently Asked Questions

• Which is the smallest prime factor of 387?

  Smallest prime factor of 387 is 3.

• Is 387 a perfect square?

  No 387 is not a perfect square.

• What is the prime factorization of 387?

  Prime factorization of 387 is 3 x 3 x 43.

• What is prime factorization of 387 in exponential form?

  Prime factorization of 387 in exponential form is 3² x 43.

• Is 387 a prime number?

  false, 387 is not a prime number.

• Which is the largest prime factors of 387?

  The largest prime factor of 387 is 43.

• What is the product of all prime factors of 387?

  Prime factors of 387 are 3 x 3 x 43. Therefore, their product is 387.

• What is the sum of all odd prime factors of 387?

  Prime factors of 387 are 3 , 3 , 43, out of which 3 , 3 , 43 are odd numbers. So, the sum of odd prime factors of 387 is 3 + 3 + 43 = 49.

• What is the product of all odd prime factors of 387?

  Prime factors of 387 are 3 , 3 , 43, out of which 3 , 3 , 43 are odd numbers. So, the product of odd prime factors of 387 is 3 x 3 x 43 = 387.