Q: What are the prime factors of the number 646,484?

 A: 2, 23, 7027

Why are those the prime factors of the number 646,484?

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 646,484

646,484
Factor Arrows
2323,242
Factor Arrows
2161,621
Factor Arrows
237,027

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, 23, 7027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 23 x 7,027 = 646,484

This can also be written as 22 x 231 x 7,0271 = 646,484

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


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