Q: What are the prime factors of the number 321,312,204?

 A: 2, 3, 71, 41903

Why are those the prime factors of the number 321,312,204?

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 321,312,204

321,312,204
Factor Arrows
2160,656,102
Factor Arrows
280,328,051
Factor Arrows
326,776,017
Factor Arrows
38,925,339
Factor Arrows
32,975,113
Factor Arrows
7141,903

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, 71, 41903

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 71 x 41,903 = 321,312,204

This can also be written as 22 x 33 x 711 x 41,9031 = 321,312,204

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


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