Q: What are the prime factors of the number 14,171,760?

 A: 2, 3, 5

Why are those the prime factors of the number 14,171,760?

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 14,171,760

14,171,760
Factor Arrows
27,085,880
Factor Arrows
23,542,940
Factor Arrows
21,771,470
Factor Arrows
2885,735
Factor Arrows
3295,245
Factor Arrows
398,415
Factor Arrows
332,805
Factor Arrows
310,935
Factor Arrows
33,645
Factor Arrows
31,215
Factor Arrows
3405
Factor Arrows
3135
Factor Arrows
345
Factor Arrows
315
Factor Arrows
35

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 = 14,171,760

This can also be written as 24 x 311 x 51 = 14,171,760

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


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