Q: What are the prime factors of the number 422,180?

 A: 2, 5, 11, 19, 101

Why are those the prime factors of the number 422,180?

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 422,180

422,180
Factor Arrows
2211,090
Factor Arrows
2105,545
Factor Arrows
521,109
Factor Arrows
111,919
Factor Arrows
19101

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, 11, 19, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 19 x 101 = 422,180

This can also be written as 22 x 51 x 111 x 191 x 1011 = 422,180

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


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