Q: What are the prime factors of the number 14,028,672?

 A: 2, 3, 7, 17, 307

Why are those the prime factors of the number 14,028,672?

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 14,028,672

14,028,672
Factor Arrows
27,014,336
Factor Arrows
23,507,168
Factor Arrows
21,753,584
Factor Arrows
2876,792
Factor Arrows
2438,396
Factor Arrows
2219,198
Factor Arrows
2109,599
Factor Arrows
336,533
Factor Arrows
75,219
Factor Arrows
17307

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, 7, 17, 307

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 7 x 17 x 307 = 14,028,672

This can also be written as 27 x 31 x 71 x 171 x 3071 = 14,028,672

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


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