Q: What are the prime factors of the number 322,143,200?

 A: 2, 5, 17, 23687

Why are those the prime factors of the number 322,143,200?

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 322,143,200

322,143,200
Factor Arrows
2161,071,600
Factor Arrows
280,535,800
Factor Arrows
240,267,900
Factor Arrows
220,133,950
Factor Arrows
210,066,975
Factor Arrows
52,013,395
Factor Arrows
5402,679
Factor Arrows
1723,687

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, 17, 23687

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 17 x 23,687 = 322,143,200

This can also be written as 25 x 52 x 171 x 23,6871 = 322,143,200

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


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