Q: What are the prime factors of the number 321,004,404?

 A: 2, 3, 7, 17, 24977

Why are those the prime factors of the number 321,004,404?

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 321,004,404

321,004,404
Factor Arrows
2160,502,202
Factor Arrows
280,251,101
Factor Arrows
326,750,367
Factor Arrows
38,916,789
Factor Arrows
32,972,263
Factor Arrows
7424,609
Factor Arrows
1724,977

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, 7, 17, 24977

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 17 x 24,977 = 321,004,404

This can also be written as 22 x 33 x 71 x 171 x 24,9771 = 321,004,404

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


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