Q: What are the prime factors of the number 306,350,072?

 A: 2, 7, 19, 499, 577

Why are those the prime factors of the number 306,350,072?

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 306,350,072

306,350,072
Factor Arrows
2153,175,036
Factor Arrows
276,587,518
Factor Arrows
238,293,759
Factor Arrows
75,470,537
Factor Arrows
19287,923
Factor Arrows
499577

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, 7, 19, 499, 577

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 19 x 499 x 577 = 306,350,072

This can also be written as 23 x 71 x 191 x 4991 x 5771 = 306,350,072

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


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