Q: What are the prime factors of the number 311,243,555?

 A: 5, 7, 131, 67883

Why are those the prime factors of the number 311,243,555?

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 311,243,555

311,243,555
Factor Arrows
562,248,711
Factor Arrows
78,892,673
Factor Arrows
13167,883

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:

5, 7, 131, 67883

We can check our work by multiplying all of the prime factors together: 5 x 7 x 131 x 67,883 = 311,243,555

This can also be written as 51 x 71 x 1311 x 67,8831 = 311,243,555

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 311,243,555:


Ask a Question