Q: What are the prime factors of the number 322,021,225?

 A: 5, 17, 191, 3967

Why are those the prime factors of the number 322,021,225?

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 322,021,225

322,021,225
Factor Arrows
564,404,245
Factor Arrows
512,880,849
Factor Arrows
17757,697
Factor Arrows
1913,967

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:

5, 17, 191, 3967

We can check our work by multiplying all of the prime factors together: 5 x 5 x 17 x 191 x 3,967 = 322,021,225

This can also be written as 52 x 171 x 1911 x 3,9671 = 322,021,225

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


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