Q: What are the prime factors of the number 11,574,304?

 A: 2, 7, 163, 317

Why are those the prime factors of the number 11,574,304?

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 11,574,304

11,574,304
Factor Arrows
25,787,152
Factor Arrows
22,893,576
Factor Arrows
21,446,788
Factor Arrows
2723,394
Factor Arrows
2361,697
Factor Arrows
751,671
Factor Arrows
163317

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, 163, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 163 x 317 = 11,574,304

This can also be written as 25 x 71 x 1631 x 3171 = 11,574,304

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


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