Q: What are the prime factors of the number 724,151,136?

 A: 2, 3, 23, 327967

Why are those the prime factors of the number 724,151,136?

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 724,151,136

724,151,136
Factor Arrows
2362,075,568
Factor Arrows
2181,037,784
Factor Arrows
290,518,892
Factor Arrows
245,259,446
Factor Arrows
222,629,723
Factor Arrows
37,543,241
Factor Arrows
23327,967

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, 23, 327967

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 23 x 327,967 = 724,151,136

This can also be written as 25 x 31 x 231 x 327,9671 = 724,151,136

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


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