Q: What are the prime factors of the number 854,272?

 A: 2, 47, 71

Why are those the prime factors of the number 854,272?

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 854,272

854,272
Factor Arrows
2427,136
Factor Arrows
2213,568
Factor Arrows
2106,784
Factor Arrows
253,392
Factor Arrows
226,696
Factor Arrows
213,348
Factor Arrows
26,674
Factor Arrows
23,337
Factor Arrows
4771

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, 47, 71

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 2 x 47 x 71 = 854,272

This can also be written as 28 x 471 x 711 = 854,272

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


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