Q: What are the prime factors of the number 30,331,008?

 A: 2, 3, 113, 233

Why are those the prime factors of the number 30,331,008?

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 30,331,008

30,331,008
Factor Arrows
215,165,504
Factor Arrows
27,582,752
Factor Arrows
23,791,376
Factor Arrows
21,895,688
Factor Arrows
2947,844
Factor Arrows
2473,922
Factor Arrows
2236,961
Factor Arrows
378,987
Factor Arrows
326,329
Factor Arrows
113233

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, 113, 233

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 3 x 113 x 233 = 30,331,008

This can also be written as 27 x 32 x 1131 x 2331 = 30,331,008

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


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