Q: What are the prime factors of the number 724,551,280?

 A: 2, 5, 73, 124067

Why are those the prime factors of the number 724,551,280?

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 724,551,280

724,551,280
Factor Arrows
2362,275,640
Factor Arrows
2181,137,820
Factor Arrows
290,568,910
Factor Arrows
245,284,455
Factor Arrows
59,056,891
Factor Arrows
73124,067

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, 73, 124067

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 73 x 124,067 = 724,551,280

This can also be written as 24 x 51 x 731 x 124,0671 = 724,551,280

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


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