Q: What are the prime factors of the number 659,625?

 A: 3, 5, 1759

Why are those the prime factors of the number 659,625?

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 659,625

659,625
Factor Arrows
3219,875
Factor Arrows
543,975
Factor Arrows
58,795
Factor Arrows
51,759

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, 1759

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 1,759 = 659,625

This can also be written as 31 x 53 x 1,7591 = 659,625

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


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