Q: What are the prime factors of the number 174,440?

 A: 2, 5, 7, 89

Why are those the prime factors of the number 174,440?

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 174,440

174,440
Factor Arrows
287,220
Factor Arrows
243,610
Factor Arrows
221,805
Factor Arrows
54,361
Factor Arrows
7623
Factor Arrows
789

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:

2, 5, 7, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 7 x 89 = 174,440

This can also be written as 23 x 51 x 72 x 891 = 174,440

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


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