Q: What are the prime factors of the number 447,680?

 A: 2, 5, 1399

Why are those the prime factors of the number 447,680?

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 447,680

447,680
Factor Arrows
2223,840
Factor Arrows
2111,920
Factor Arrows
255,960
Factor Arrows
227,980
Factor Arrows
213,990
Factor Arrows
26,995
Factor Arrows
51,399

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, 1399

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 5 x 1,399 = 447,680

This can also be written as 26 x 51 x 1,3991 = 447,680

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


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