Q: What are the prime factors of the number 11,068,928?

 A: 2, 13, 1663

Why are those the prime factors of the number 11,068,928?

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 11,068,928

11,068,928
Factor Arrows
25,534,464
Factor Arrows
22,767,232
Factor Arrows
21,383,616
Factor Arrows
2691,808
Factor Arrows
2345,904
Factor Arrows
2172,952
Factor Arrows
286,476
Factor Arrows
243,238
Factor Arrows
221,619
Factor Arrows
131,663

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, 13, 1663

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 2 x 13 x 1,663 = 11,068,928

This can also be written as 29 x 131 x 1,6631 = 11,068,928

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


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