Q: What are the prime factors of the number 669,180?

 A: 2, 3, 5, 19, 587

Why are those the prime factors of the number 669,180?

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 669,180

669,180
Factor Arrows
2334,590
Factor Arrows
2167,295
Factor Arrows
355,765
Factor Arrows
511,153
Factor Arrows
19587

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, 5, 19, 587

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 19 x 587 = 669,180

This can also be written as 22 x 31 x 51 x 191 x 5871 = 669,180

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


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