Q: What are the prime factors of the number 720,362,048?

 A: 2, 7, 19, 84629

Why are those the prime factors of the number 720,362,048?

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 720,362,048

720,362,048
Factor Arrows
2360,181,024
Factor Arrows
2180,090,512
Factor Arrows
290,045,256
Factor Arrows
245,022,628
Factor Arrows
222,511,314
Factor Arrows
211,255,657
Factor Arrows
71,607,951
Factor Arrows
1984,629

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, 7, 19, 84629

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 7 x 19 x 84,629 = 720,362,048

This can also be written as 26 x 71 x 191 x 84,6291 = 720,362,048

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


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