Q: What are the prime factors of the number 37,787,328?

 A: 2, 3, 17, 227

Why are those the prime factors of the number 37,787,328?

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 37,787,328

37,787,328
Factor Arrows
218,893,664
Factor Arrows
29,446,832
Factor Arrows
24,723,416
Factor Arrows
22,361,708
Factor Arrows
21,180,854
Factor Arrows
2590,427
Factor Arrows
3196,809
Factor Arrows
365,603
Factor Arrows
173,859
Factor Arrows
17227

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, 17, 227

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 17 x 17 x 227 = 37,787,328

This can also be written as 26 x 32 x 172 x 2271 = 37,787,328

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


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