Q: What are the prime factors of the number 724,372,176?

 A: 2, 3, 11, 17, 80701

Why are those the prime factors of the number 724,372,176?

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 724,372,176

724,372,176
Factor Arrows
2362,186,088
Factor Arrows
2181,093,044
Factor Arrows
290,546,522
Factor Arrows
245,273,261
Factor Arrows
315,091,087
Factor Arrows
111,371,917
Factor Arrows
1780,701

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, 11, 17, 80701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 17 x 80,701 = 724,372,176

This can also be written as 24 x 31 x 111 x 171 x 80,7011 = 724,372,176

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


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