Q: What are the prime factors of the number 648,804?

 A: 2, 3, 13, 4159

Why are those the prime factors of the number 648,804?

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 648,804

648,804
Factor Arrows
2324,402
Factor Arrows
2162,201
Factor Arrows
354,067
Factor Arrows
134,159

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, 13, 4159

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 4,159 = 648,804

This can also be written as 22 x 31 x 131 x 4,1591 = 648,804

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


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