Q: What are the prime factors of the number 431,101,404?

 A: 2, 3, 89, 197, 683

Why are those the prime factors of the number 431,101,404?

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 431,101,404

431,101,404
Factor Arrows
2215,550,702
Factor Arrows
2107,775,351
Factor Arrows
335,925,117
Factor Arrows
311,975,039
Factor Arrows
89134,551
Factor Arrows
197683

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, 89, 197, 683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 89 x 197 x 683 = 431,101,404

This can also be written as 22 x 32 x 891 x 1971 x 6831 = 431,101,404

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


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