Q: What are the prime factors of the number 207,151,320?

 A: 2, 3, 5, 307, 5623

Why are those the prime factors of the number 207,151,320?

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 207,151,320

207,151,320
Factor Arrows
2103,575,660
Factor Arrows
251,787,830
Factor Arrows
225,893,915
Factor Arrows
38,631,305
Factor Arrows
51,726,261
Factor Arrows
3075,623

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, 5, 307, 5623

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 307 x 5,623 = 207,151,320

This can also be written as 23 x 31 x 51 x 3071 x 5,6231 = 207,151,320

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


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