Q: What are the prime factors of the number 625,608?

 A: 2, 3, 8689

Why are those the prime factors of the number 625,608?

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 625,608

625,608
Factor Arrows
2312,804
Factor Arrows
2156,402
Factor Arrows
278,201
Factor Arrows
326,067
Factor Arrows
38,689

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, 8689

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 8,689 = 625,608

This can also be written as 23 x 32 x 8,6891 = 625,608

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


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