Q: What are the prime factors of the number 1,128,096?

 A: 2, 3, 3917

Why are those the prime factors of the number 1,128,096?

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 1,128,096

1,128,096
Factor Arrows
2564,048
Factor Arrows
2282,024
Factor Arrows
2141,012
Factor Arrows
270,506
Factor Arrows
235,253
Factor Arrows
311,751
Factor Arrows
33,917

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, 3917

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3,917 = 1,128,096

This can also be written as 25 x 32 x 3,9171 = 1,128,096

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


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