Q: What are the prime factors of the number 573,920?

 A: 2, 5, 17, 211

Why are those the prime factors of the number 573,920?

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 573,920

573,920
Factor Arrows
2286,960
Factor Arrows
2143,480
Factor Arrows
271,740
Factor Arrows
235,870
Factor Arrows
217,935
Factor Arrows
53,587
Factor Arrows
17211

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, 17, 211

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 17 x 211 = 573,920

This can also be written as 25 x 51 x 171 x 2111 = 573,920

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


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