Q: What are the prime factors of the number 764,703,172?

 A: 2, 23, 8311991

Why are those the prime factors of the number 764,703,172?

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 764,703,172

764,703,172
Factor Arrows
2382,351,586
Factor Arrows
2191,175,793
Factor Arrows
238,311,991

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, 23, 8311991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 23 x 8,311,991 = 764,703,172

This can also be written as 22 x 231 x 8,311,9911 = 764,703,172

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


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