Q: What are the prime factors of the number 213,301,568?

 A: 2, 521, 6397

Why are those the prime factors of the number 213,301,568?

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 213,301,568

213,301,568
Factor Arrows
2106,650,784
Factor Arrows
253,325,392
Factor Arrows
226,662,696
Factor Arrows
213,331,348
Factor Arrows
26,665,674
Factor Arrows
23,332,837
Factor Arrows
5216,397

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, 521, 6397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 521 x 6,397 = 213,301,568

This can also be written as 26 x 5211 x 6,3971 = 213,301,568

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


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