Q: What are the prime factors of the number 11,490,688?

 A: 2, 11, 8161

Why are those the prime factors of the number 11,490,688?

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 11,490,688

11,490,688
Factor Arrows
25,745,344
Factor Arrows
22,872,672
Factor Arrows
21,436,336
Factor Arrows
2718,168
Factor Arrows
2359,084
Factor Arrows
2179,542
Factor Arrows
289,771
Factor Arrows
118,161

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, 11, 8161

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 11 x 8,161 = 11,490,688

This can also be written as 27 x 111 x 8,1611 = 11,490,688

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


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