Q: What are the prime factors of the number 322,013,120?

 A: 2, 5, 11, 13, 31, 227

Why are those the prime factors of the number 322,013,120?

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 322,013,120

322,013,120
Factor Arrows
2161,006,560
Factor Arrows
280,503,280
Factor Arrows
240,251,640
Factor Arrows
220,125,820
Factor Arrows
210,062,910
Factor Arrows
25,031,455
Factor Arrows
51,006,291
Factor Arrows
1191,481
Factor Arrows
137,037
Factor Arrows
31227

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, 5, 11, 13, 31, 227

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 11 x 13 x 31 x 227 = 322,013,120

This can also be written as 26 x 51 x 111 x 131 x 311 x 2271 = 322,013,120

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


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