Q: What are the prime factors of the number 1,135,616?

 A: 2, 1109

Why are those the prime factors of the number 1,135,616?

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 1,135,616

1,135,616
Factor Arrows
2567,808
Factor Arrows
2283,904
Factor Arrows
2141,952
Factor Arrows
270,976
Factor Arrows
235,488
Factor Arrows
217,744
Factor Arrows
28,872
Factor Arrows
24,436
Factor Arrows
22,218
Factor Arrows
21,109

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, 1109

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 2 x 1,109 = 1,135,616

This can also be written as 210 x 1,1091 = 1,135,616

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


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