Q: What are the prime factors of the number 305,515,617?

 A: 3, 11, 137, 67577

Why are those the prime factors of the number 305,515,617?

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 305,515,617

305,515,617
Factor Arrows
3101,838,539
Factor Arrows
119,258,049
Factor Arrows
13767,577

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, 11, 137, 67577

We can check our work by multiplying all of the prime factors together: 3 x 11 x 137 x 67,577 = 305,515,617

This can also be written as 31 x 111 x 1371 x 67,5771 = 305,515,617

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 305,515,617:


Ask a Question