Q: What are the prime factors of the number 11,564,224?

 A: 2, 7, 83, 311

Why are those the prime factors of the number 11,564,224?

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 11,564,224

11,564,224
Factor Arrows
25,782,112
Factor Arrows
22,891,056
Factor Arrows
21,445,528
Factor Arrows
2722,764
Factor Arrows
2361,382
Factor Arrows
2180,691
Factor Arrows
725,813
Factor Arrows
83311

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, 7, 83, 311

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 7 x 83 x 311 = 11,564,224

This can also be written as 26 x 71 x 831 x 3111 = 11,564,224

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


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