Q: What are the prime factors of the number 38,424,918?

 A: 2, 3, 7, 18671

Why are those the prime factors of the number 38,424,918?

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 38,424,918

38,424,918
Factor Arrows
219,212,459
Factor Arrows
36,404,153
Factor Arrows
7914,879
Factor Arrows
7130,697
Factor Arrows
718,671

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, 7, 18671

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 7 x 18,671 = 38,424,918

This can also be written as 21 x 31 x 73 x 18,6711 = 38,424,918

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


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