Q: What are the prime factors of the number 14,142,144?

 A: 2, 3, 73, 1009

Why are those the prime factors of the number 14,142,144?

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 14,142,144

14,142,144
Factor Arrows
27,071,072
Factor Arrows
23,535,536
Factor Arrows
21,767,768
Factor Arrows
2883,884
Factor Arrows
2441,942
Factor Arrows
2220,971
Factor Arrows
373,657
Factor Arrows
731,009

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, 73, 1009

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 3 x 73 x 1,009 = 14,142,144

This can also be written as 26 x 31 x 731 x 1,0091 = 14,142,144

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


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