Q: What are the prime factors of the number 423,301,660?

 A: 2, 5, 23, 83, 11087

Why are those the prime factors of the number 423,301,660?

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 423,301,660

423,301,660
Factor Arrows
2211,650,830
Factor Arrows
2105,825,415
Factor Arrows
521,165,083
Factor Arrows
23920,221
Factor Arrows
8311,087

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:

2, 5, 23, 83, 11087

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 23 x 83 x 11,087 = 423,301,660

This can also be written as 22 x 51 x 231 x 831 x 11,0871 = 423,301,660

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


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