Q: What are the prime factors of the number 423,345,609?

 A: 3, 53, 10957

Why are those the prime factors of the number 423,345,609?

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 423,345,609

423,345,609
Factor Arrows
3141,115,203
Factor Arrows
347,038,401
Factor Arrows
315,679,467
Factor Arrows
35,226,489
Factor Arrows
31,742,163
Factor Arrows
3580,721
Factor Arrows
5310,957

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, 53, 10957

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 53 x 10,957 = 423,345,609

This can also be written as 36 x 531 x 10,9571 = 423,345,609

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


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