Q: What are the prime factors of the number 914,480?

 A: 2, 5, 7, 23, 71

Why are those the prime factors of the number 914,480?

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 914,480

914,480
Factor Arrows
2457,240
Factor Arrows
2228,620
Factor Arrows
2114,310
Factor Arrows
257,155
Factor Arrows
511,431
Factor Arrows
71,633
Factor Arrows
2371

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, 7, 23, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 23 x 71 = 914,480

This can also be written as 24 x 51 x 71 x 231 x 711 = 914,480

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


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