Q: What are the prime factors of the number 817,875?

 A: 3, 5, 727

Why are those the prime factors of the number 817,875?

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 817,875

817,875
Factor Arrows
3272,625
Factor Arrows
390,875
Factor Arrows
518,175
Factor Arrows
53,635
Factor Arrows
5727

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, 5, 727

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 5 x 727 = 817,875

This can also be written as 32 x 53 x 7271 = 817,875

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


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