Q: What are the prime factors of the number 66,015,691?

 A: 7, 563, 2393

Why are those the prime factors of the number 66,015,691?

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 66,015,691

66,015,691
Factor Arrows
79,430,813
Factor Arrows
71,347,259
Factor Arrows
5632,393

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:

7, 563, 2393

We can check our work by multiplying all of the prime factors together: 7 x 7 x 563 x 2,393 = 66,015,691

This can also be written as 72 x 5631 x 2,3931 = 66,015,691

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 66,015,691:


Ask a Question