Q: What are the prime factors of the number 213,184?

 A: 2, 3331

Why are those the prime factors of the number 213,184?

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 213,184

213,184
Factor Arrows
2106,592
Factor Arrows
253,296
Factor Arrows
226,648
Factor Arrows
213,324
Factor Arrows
26,662
Factor Arrows
23,331

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, 3331

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 3,331 = 213,184

This can also be written as 26 x 3,3311 = 213,184

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


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