Q: What are the prime factors of the number 421,230,131?

 A: 7, 17, 569, 6221

Why are those the prime factors of the number 421,230,131?

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 421,230,131

421,230,131
Factor Arrows
760,175,733
Factor Arrows
173,539,749
Factor Arrows
5696,221

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, 569, 6221

We can check our work by multiplying all of the prime factors together: 7 x 17 x 569 x 6,221 = 421,230,131

This can also be written as 71 x 171 x 5691 x 6,2211 = 421,230,131

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


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