Q: What are the prime factors of the number 38,583,440?

 A: 2, 5, 7, 68899

Why are those the prime factors of the number 38,583,440?

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 38,583,440

38,583,440
Factor Arrows
219,291,720
Factor Arrows
29,645,860
Factor Arrows
24,822,930
Factor Arrows
22,411,465
Factor Arrows
5482,293
Factor Arrows
768,899

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, 5, 7, 68899

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 68,899 = 38,583,440

This can also be written as 24 x 51 x 71 x 68,8991 = 38,583,440

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


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