Q: What are the prime factors of the number 230,405,553?

 A: 3, 7, 163, 277

Why are those the prime factors of the number 230,405,553?

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 230,405,553

230,405,553
Factor Arrows
376,801,851
Factor Arrows
325,600,617
Factor Arrows
38,533,539
Factor Arrows
32,844,513
Factor Arrows
3948,171
Factor Arrows
3316,057
Factor Arrows
745,151
Factor Arrows
163277

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, 7, 163, 277

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 7 x 163 x 277 = 230,405,553

This can also be written as 36 x 71 x 1631 x 2771 = 230,405,553

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


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