Q: What are the prime factors of the number 173,184?

 A: 2, 3, 11, 41

Why are those the prime factors of the number 173,184?

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 173,184

173,184
Factor Arrows
286,592
Factor Arrows
243,296
Factor Arrows
221,648
Factor Arrows
210,824
Factor Arrows
25,412
Factor Arrows
22,706
Factor Arrows
21,353
Factor Arrows
3451
Factor Arrows
1141

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, 3, 11, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 41 = 173,184

This can also be written as 27 x 31 x 111 x 411 = 173,184

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


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