Q: What are the prime factors of the number 447,330,432?

 A: 2, 3, 229, 5087

Why are those the prime factors of the number 447,330,432?

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 447,330,432

447,330,432
Factor Arrows
2223,665,216
Factor Arrows
2111,832,608
Factor Arrows
255,916,304
Factor Arrows
227,958,152
Factor Arrows
213,979,076
Factor Arrows
26,989,538
Factor Arrows
23,494,769
Factor Arrows
31,164,923
Factor Arrows
2295,087

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, 3, 229, 5087

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 229 x 5,087 = 447,330,432

This can also be written as 27 x 31 x 2291 x 5,0871 = 447,330,432

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


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