Q: What are the prime factors of the number 770,325,664?

 A: 2, 19, 709, 1787

Why are those the prime factors of the number 770,325,664?

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 770,325,664

770,325,664
Factor Arrows
2385,162,832
Factor Arrows
2192,581,416
Factor Arrows
296,290,708
Factor Arrows
248,145,354
Factor Arrows
224,072,677
Factor Arrows
191,266,983
Factor Arrows
7091,787

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, 19, 709, 1787

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 709 x 1,787 = 770,325,664

This can also be written as 25 x 191 x 7091 x 1,7871 = 770,325,664

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 770,325,664:


Ask a Question