Q: What are the prime factors of the number 322,160,540?

 A: 2, 5, 13, 17, 23, 3169

Why are those the prime factors of the number 322,160,540?

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 322,160,540

322,160,540
Factor Arrows
2161,080,270
Factor Arrows
280,540,135
Factor Arrows
516,108,027
Factor Arrows
131,239,079
Factor Arrows
1772,887
Factor Arrows
233,169

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, 13, 17, 23, 3169

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 17 x 23 x 3,169 = 322,160,540

This can also be written as 22 x 51 x 131 x 171 x 231 x 3,1691 = 322,160,540

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


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