Prime Factors of 171

Looking to get a list of the prime factors of 171? In this article we'll give you all of the information you need, including the definition of the prime factors of 171, how to calculate the prime factors of 171 (also known as the prime factorization of 171). As a bonus, we'll also list out the prime factor tree of 171 the product of prime factors of 171, and tell you how many prime factors 171 has.

Prime Factors of 171 Definition

Every number can be represented as a product of prime numbers. So when we talk aqbout prime factorization of 171, we're talking about the building blocks of the number. A prime factor is a positive integer that can only be divided by 1 and itself. The prime factors of 171 are all of the prime numbers in it that when multipled together will equal 171.

Let's look at how to find all of the prime factors of 171 and list them out.

How to Find the Prime Factors of 171

You'll often see the process of finding prime factors of 171 referred to as prime factorization. To get the prime factors of 171 we need to divide 171 by the smallest prime number possible. You then repeat the same process by taking the result and dividing that number by the smallest prime number. Eventually, you end up with the number 1.

This process creates something called a prime factor tree of 171. The prime numbers used in this tree are the prime factors of 171. Let's look at the prime factor tree for 171:

  • 171 ÷ 3 = 57
  • 57 ÷ 3 = 19
  • 19 ÷ 19 = 1

Put simply, all of the prime numbers that you used to divide above are the prime factors of 171 as well. So what we are left with is the answer to your search, the prime factors of 171:

3, 3, and 19

How Many Prime Factors of 171 Are There?

If we count up all of the prime factors of 171 used in the prime factor tree above, we can see that 171 has a total of 3 prime factors.

Product of Prime Factors of 171

The prime factors shown above (3, 3, and 19) are completely unique to 171. When we multiply all of them together the result will be 171 and this is what we call the product of prime factors of 171. The prime factor products of 171 are listed below:

3 x 3 x 19 = 171

So there you have it. A complete guide to the factors of 171. You should now have the knowledge and skills to go out and calculate your own factors and factor pairs for any number you like.

Feel free to try the calculator below to check another number or, if you're feeling fancy, grab a pencil and paper and try and do it by hand. Just make sure to pick small numbers!

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Prime Factors of 172