Q: What are the prime factors of the number 321,223,007?

 A: 7, 17, 431, 6263

Why are those the prime factors of the number 321,223,007?

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 321,223,007

321,223,007
Factor Arrows
745,889,001
Factor Arrows
172,699,353
Factor Arrows
4316,263

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:

7, 17, 431, 6263

We can check our work by multiplying all of the prime factors together: 7 x 17 x 431 x 6,263 = 321,223,007

This can also be written as 71 x 171 x 4311 x 6,2631 = 321,223,007

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


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