Q: What are the prime factors of the number 321,212,229?

 A: 3, 13, 17, 28499

Why are those the prime factors of the number 321,212,229?

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 321,212,229

321,212,229
Factor Arrows
3107,070,743
Factor Arrows
138,236,211
Factor Arrows
17484,483
Factor Arrows
1728,499

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:

3, 13, 17, 28499

We can check our work by multiplying all of the prime factors together: 3 x 13 x 17 x 17 x 28,499 = 321,212,229

This can also be written as 31 x 131 x 172 x 28,4991 = 321,212,229

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


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