Q: What are the prime factors of the number 11,552,640?

 A: 2, 3, 5, 11, 547

Why are those the prime factors of the number 11,552,640?

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 11,552,640

11,552,640
Factor Arrows
25,776,320
Factor Arrows
22,888,160
Factor Arrows
21,444,080
Factor Arrows
2722,040
Factor Arrows
2361,020
Factor Arrows
2180,510
Factor Arrows
290,255
Factor Arrows
330,085
Factor Arrows
56,017
Factor Arrows
11547

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, 5, 11, 547

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 3 x 5 x 11 x 547 = 11,552,640

This can also be written as 27 x 31 x 51 x 111 x 5471 = 11,552,640

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


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