Q: What are the prime factors of the number 11,621,736?

 A: 2, 3, 7, 23059

Why are those the prime factors of the number 11,621,736?

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 11,621,736

11,621,736
Factor Arrows
25,810,868
Factor Arrows
22,905,434
Factor Arrows
21,452,717
Factor Arrows
3484,239
Factor Arrows
3161,413
Factor Arrows
723,059

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, 23059

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 23,059 = 11,621,736

This can also be written as 23 x 32 x 71 x 23,0591 = 11,621,736

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


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