Q: What are the prime factors of the number 764,416,072?

 A: 2, 7, 113, 17257

Why are those the prime factors of the number 764,416,072?

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 764,416,072

764,416,072
Factor Arrows
2382,208,036
Factor Arrows
2191,104,018
Factor Arrows
295,552,009
Factor Arrows
713,650,287
Factor Arrows
71,950,041
Factor Arrows
11317,257

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, 113, 17257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 113 x 17,257 = 764,416,072

This can also be written as 23 x 72 x 1131 x 17,2571 = 764,416,072

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


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