Q: What are the prime factors of the number 459,720?

 A: 2, 3, 5, 1277

Why are those the prime factors of the number 459,720?

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 459,720

459,720
Factor Arrows
2229,860
Factor Arrows
2114,930
Factor Arrows
257,465
Factor Arrows
319,155
Factor Arrows
36,385
Factor Arrows
51,277

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, 5, 1277

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 1,277 = 459,720

This can also be written as 23 x 32 x 51 x 1,2771 = 459,720

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


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