Q: What are the prime factors of the number 764,007,615?

 A: 3, 5, 7, 61, 39761

Why are those the prime factors of the number 764,007,615?

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 764,007,615

764,007,615
Factor Arrows
3254,669,205
Factor Arrows
384,889,735
Factor Arrows
516,977,947
Factor Arrows
72,425,421
Factor Arrows
6139,761

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:

3, 5, 7, 61, 39761

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 61 x 39,761 = 764,007,615

This can also be written as 32 x 51 x 71 x 611 x 39,7611 = 764,007,615

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


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