Q: What are the prime factors of the number 11,550,240?

 A: 2, 3, 5, 13, 617

Why are those the prime factors of the number 11,550,240?

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 11,550,240

11,550,240
Factor Arrows
25,775,120
Factor Arrows
22,887,560
Factor Arrows
21,443,780
Factor Arrows
2721,890
Factor Arrows
2360,945
Factor Arrows
3120,315
Factor Arrows
340,105
Factor Arrows
58,021
Factor Arrows
13617

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, 13, 617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 13 x 617 = 11,550,240

This can also be written as 25 x 32 x 51 x 131 x 6171 = 11,550,240

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


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