Q: What are the prime factors of the number 28,012,467?

 A: 3, 7, 3889

Why are those the prime factors of the number 28,012,467?

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 28,012,467

28,012,467
Factor Arrows
39,337,489
Factor Arrows
71,333,927
Factor Arrows
7190,561
Factor Arrows
727,223
Factor Arrows
73,889

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:

3, 7, 3889

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 7 x 7 x 3,889 = 28,012,467

This can also be written as 31 x 74 x 3,8891 = 28,012,467

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


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