Q: What are the prime factors of the number 11,724,687?

 A: 3, 13, 23, 4357

Why are those the prime factors of the number 11,724,687?

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 11,724,687

11,724,687
Factor Arrows
33,908,229
Factor Arrows
31,302,743
Factor Arrows
13100,211
Factor Arrows
234,357

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:

3, 13, 23, 4357

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 23 x 4,357 = 11,724,687

This can also be written as 32 x 131 x 231 x 4,3571 = 11,724,687

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


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