Q: What are the prime factors of the number 30,125,184?

 A: 2, 3, 19, 4129

Why are those the prime factors of the number 30,125,184?

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 30,125,184

30,125,184
Factor Arrows
215,062,592
Factor Arrows
27,531,296
Factor Arrows
23,765,648
Factor Arrows
21,882,824
Factor Arrows
2941,412
Factor Arrows
2470,706
Factor Arrows
2235,353
Factor Arrows
378,451
Factor Arrows
194,129

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, 19, 4129

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 19 x 4,129 = 30,125,184

This can also be written as 27 x 31 x 191 x 4,1291 = 30,125,184

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


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