Q: What are the prime factors of the number 10,006,656?

 A: 2, 3, 11, 23, 103

Why are those the prime factors of the number 10,006,656?

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 10,006,656

10,006,656
Factor Arrows
25,003,328
Factor Arrows
22,501,664
Factor Arrows
21,250,832
Factor Arrows
2625,416
Factor Arrows
2312,708
Factor Arrows
2156,354
Factor Arrows
278,177
Factor Arrows
326,059
Factor Arrows
112,369
Factor Arrows
23103

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, 11, 23, 103

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 3 x 11 x 23 x 103 = 10,006,656

This can also be written as 27 x 31 x 111 x 231 x 1031 = 10,006,656

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


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