Q: What are the prime factors of the number 422,040?

 A: 2, 3, 5, 3517

Why are those the prime factors of the number 422,040?

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 422,040

422,040
Factor Arrows
2211,020
Factor Arrows
2105,510
Factor Arrows
252,755
Factor Arrows
317,585
Factor Arrows
53,517

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, 3517

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 3,517 = 422,040

This can also be written as 23 x 31 x 51 x 3,5171 = 422,040

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


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