Q: What are the prime factors of the number 323,021,328?

 A: 2, 3, 7, 137339

Why are those the prime factors of the number 323,021,328?

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 323,021,328

323,021,328
Factor Arrows
2161,510,664
Factor Arrows
280,755,332
Factor Arrows
240,377,666
Factor Arrows
220,188,833
Factor Arrows
36,729,611
Factor Arrows
7961,373
Factor Arrows
7137,339

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, 137339

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 137,339 = 323,021,328

This can also be written as 24 x 31 x 72 x 137,3391 = 323,021,328

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


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