Q: What are the prime factors of the number 30,124,224?

 A: 2, 3, 13, 149

Why are those the prime factors of the number 30,124,224?

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 30,124,224

30,124,224
Factor Arrows
215,062,112
Factor Arrows
27,531,056
Factor Arrows
23,765,528
Factor Arrows
21,882,764
Factor Arrows
2941,382
Factor Arrows
2470,691
Factor Arrows
3156,897
Factor Arrows
352,299
Factor Arrows
317,433
Factor Arrows
35,811
Factor Arrows
31,937
Factor Arrows
13149

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, 13, 149

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 3 x 3 x 3 x 3 x 13 x 149 = 30,124,224

This can also be written as 26 x 35 x 131 x 1491 = 30,124,224

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


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