Q: What are the prime factors of the number 15,044,480?

 A: 2, 5, 11, 2137

Why are those the prime factors of the number 15,044,480?

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 15,044,480

15,044,480
Factor Arrows
27,522,240
Factor Arrows
23,761,120
Factor Arrows
21,880,560
Factor Arrows
2940,280
Factor Arrows
2470,140
Factor Arrows
2235,070
Factor Arrows
2117,535
Factor Arrows
523,507
Factor Arrows
112,137

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, 5, 11, 2137

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 5 x 11 x 2,137 = 15,044,480

This can also be written as 27 x 51 x 111 x 2,1371 = 15,044,480

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


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