Q: What are the prime factors of the number 520,301,439?

 A: 3, 7, 17, 41

Why are those the prime factors of the number 520,301,439?

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 520,301,439

520,301,439
Factor Arrows
3173,433,813
Factor Arrows
357,811,271
Factor Arrows
78,258,753
Factor Arrows
17485,809
Factor Arrows
1728,577
Factor Arrows
171,681
Factor Arrows
4141

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:

3, 7, 17, 41

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 17 x 17 x 17 x 41 x 41 = 520,301,439

This can also be written as 32 x 71 x 173 x 412 = 520,301,439

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


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