Q: What are the prime factors of the number 712,750,640?

 A: 2, 5, 7, 79, 16111

Why are those the prime factors of the number 712,750,640?

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 712,750,640

712,750,640
Factor Arrows
2356,375,320
Factor Arrows
2178,187,660
Factor Arrows
289,093,830
Factor Arrows
244,546,915
Factor Arrows
58,909,383
Factor Arrows
71,272,769
Factor Arrows
7916,111

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, 7, 79, 16111

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 79 x 16,111 = 712,750,640

This can also be written as 24 x 51 x 71 x 791 x 16,1111 = 712,750,640

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


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