Q: What are the prime factors of the number 11,885,664?

 A: 2, 3, 7, 23, 769

Why are those the prime factors of the number 11,885,664?

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 11,885,664

11,885,664
Factor Arrows
25,942,832
Factor Arrows
22,971,416
Factor Arrows
21,485,708
Factor Arrows
2742,854
Factor Arrows
2371,427
Factor Arrows
3123,809
Factor Arrows
717,687
Factor Arrows
23769

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, 7, 23, 769

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 7 x 23 x 769 = 11,885,664

This can also be written as 25 x 31 x 71 x 231 x 7691 = 11,885,664

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


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