Q: What are the prime factors of the number 5,813,920?

 A: 2, 5, 7, 29, 179

Why are those the prime factors of the number 5,813,920?

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 5,813,920

5,813,920
Factor Arrows
22,906,960
Factor Arrows
21,453,480
Factor Arrows
2726,740
Factor Arrows
2363,370
Factor Arrows
2181,685
Factor Arrows
536,337
Factor Arrows
75,191
Factor Arrows
29179

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, 29, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 7 x 29 x 179 = 5,813,920

This can also be written as 25 x 51 x 71 x 291 x 1791 = 5,813,920

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


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