Q: What are the prime factors of the number 916,096?

 A: 2, 17, 421

Why are those the prime factors of the number 916,096?

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 916,096

916,096
Factor Arrows
2458,048
Factor Arrows
2229,024
Factor Arrows
2114,512
Factor Arrows
257,256
Factor Arrows
228,628
Factor Arrows
214,314
Factor Arrows
27,157
Factor Arrows
17421

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, 17, 421

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 17 x 421 = 916,096

This can also be written as 27 x 171 x 4211 = 916,096

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


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