Q: What are the prime factors of the number 420,633?

 A: 3, 577

Why are those the prime factors of the number 420,633?

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 420,633

420,633
Factor Arrows
3140,211
Factor Arrows
346,737
Factor Arrows
315,579
Factor Arrows
35,193
Factor Arrows
31,731
Factor Arrows
3577

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:

3, 577

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 577 = 420,633

This can also be written as 36 x 5771 = 420,633

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


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