Q: What are the prime factors of the number 689,180?

 A: 2, 5, 17, 2027

Why are those the prime factors of the number 689,180?

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 689,180

689,180
Factor Arrows
2344,590
Factor Arrows
2172,295
Factor Arrows
534,459
Factor Arrows
172,027

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, 5, 17, 2027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 17 x 2,027 = 689,180

This can also be written as 22 x 51 x 171 x 2,0271 = 689,180

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


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