Q: What are the prime factors of the number 174,105?

 A: 3, 5, 53, 73

Why are those the prime factors of the number 174,105?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 174,105

174,105
Factor Arrows
358,035
Factor Arrows
319,345
Factor Arrows
53,869
Factor Arrows
5373

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 5, 53, 73

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 53 x 73 = 174,105

This can also be written as 32 x 51 x 531 x 731 = 174,105

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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