Prime Factors of 162

Steps to find Prime Factors of 162 by Division Method

To find the primefactors of 162 using the division method, follow these steps:

• Step 1. Start dividing 162 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 162, which is 2. Divide 162 by 2 to obtain the quotient (81).
  162 ÷ 2 = 81
• Step 3. Repeat step 1 with the obtained quotient (81).
  81 ÷ 3 = 27
  27 ÷ 3 = 9
  9 ÷ 3 = 3
  3 ÷ 3 = 1

So, the prime factorization of 162 is, 162 = 2 x 3 x 3 x 3 x 3.

Steps to find Prime Factors of 162 by Factor Tree Method

We can follow the same procedure using the factor tree of 162 as shown below:

So, the prime factorization of 162 is, 162 = 2 x 3 x 3 x 3 x 3.

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 162 are 2 x 3 x 3 x 3 x 3.

Properties of Prime Factors

• Two prime factors of a given number are always coprime to each other.
• 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 162 but not a prime factor of 162.

Frequently Asked Questions

• Is 162 a prime number?

  false, 162 is not a prime number.

• How to find prime factorization of 162 easily?

  To find prime factorization of 162 easily you can refer to the steps given on this page step by step.

• Which is the largest prime factors of 162?

  The largest prime factor of 162 is 3.

• What is the sum of all prime factors of 162?

  Prime factors of 162 are 2 x 3 x 3 x 3 x 3. Therefore, their sum is 14.

• What is the product of all prime factors of 162?

  Prime factors of 162 are 2 x 3 x 3 x 3 x 3. Therefore, their product is 162.

• What numbers are the prime factors of 162?

  Prime factors of 162 are 2 , 3 , 3 , 3 , 3.

• What is the sum of all odd prime factors of 162?

  Prime factors of 162 are 2 , 3 , 3 , 3 , 3, out of which 3 , 3 , 3 , 3 are odd numbers. So, the sum of odd prime factors of 162 is 3 + 3 + 3 + 3 = 12.

• Is there any even prime factor of 162?

  Yes there is a even prime factor of 162.

• What is the product of all odd prime factors of 162?

  Prime factors of 162 are 2 , 3 , 3 , 3 , 3, out of which 3 , 3 , 3 , 3 are odd numbers. So, the product of odd prime factors of 162 is 3 x 3 x 3 x 3 = 81.