Q: What are the prime factors of the number 231,205,644?

 A: 2, 3, 17, 125929

Why are those the prime factors of the number 231,205,644?

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 231,205,644

231,205,644
Factor Arrows
2115,602,822
Factor Arrows
257,801,411
Factor Arrows
319,267,137
Factor Arrows
36,422,379
Factor Arrows
32,140,793
Factor Arrows
17125,929

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, 3, 17, 125929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 17 x 125,929 = 231,205,644

This can also be written as 22 x 33 x 171 x 125,9291 = 231,205,644

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


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