Q: What are the prime factors of the number 315,815,598?

 A: 2, 3, 7, 278497

Why are those the prime factors of the number 315,815,598?

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 315,815,598

315,815,598
Factor Arrows
2157,907,799
Factor Arrows
352,635,933
Factor Arrows
317,545,311
Factor Arrows
35,848,437
Factor Arrows
31,949,479
Factor Arrows
7278,497

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, 7, 278497

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 7 x 278,497 = 315,815,598

This can also be written as 21 x 34 x 71 x 278,4971 = 315,815,598

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


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