Q: What are the prime factors of the number 389,184?

 A: 2, 3, 2027

Why are those the prime factors of the number 389,184?

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 389,184

389,184
Factor Arrows
2194,592
Factor Arrows
297,296
Factor Arrows
248,648
Factor Arrows
224,324
Factor Arrows
212,162
Factor Arrows
26,081
Factor Arrows
32,027

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, 2027

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 x 2,027 = 389,184

This can also be written as 26 x 31 x 2,0271 = 389,184

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


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