Q: What are the prime factors of the number 817,207,524?

 A: 2, 3, 7, 401, 8087

Why are those the prime factors of the number 817,207,524?

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 817,207,524

817,207,524
Factor Arrows
2408,603,762
Factor Arrows
2204,301,881
Factor Arrows
368,100,627
Factor Arrows
322,700,209
Factor Arrows
73,242,887
Factor Arrows
4018,087

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, 401, 8087

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 401 x 8,087 = 817,207,524

This can also be written as 22 x 32 x 71 x 4011 x 8,0871 = 817,207,524

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


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