Q: What are the prime factors of the number 38,487,372?

 A: 2, 3, 7, 11, 23, 1811

Why are those the prime factors of the number 38,487,372?

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 38,487,372

38,487,372
Factor Arrows
219,243,686
Factor Arrows
29,621,843
Factor Arrows
33,207,281
Factor Arrows
7458,183
Factor Arrows
1141,653
Factor Arrows
231,811

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, 11, 23, 1811

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 11 x 23 x 1,811 = 38,487,372

This can also be written as 22 x 31 x 71 x 111 x 231 x 1,8111 = 38,487,372

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


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