Q: What are the prime factors of the number 231,718,740?

 A: 2, 3, 5, 11, 109, 3221

Why are those the prime factors of the number 231,718,740?

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 231,718,740

231,718,740
Factor Arrows
2115,859,370
Factor Arrows
257,929,685
Factor Arrows
319,309,895
Factor Arrows
53,861,979
Factor Arrows
11351,089
Factor Arrows
1093,221

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, 3, 5, 11, 109, 3221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 11 x 109 x 3,221 = 231,718,740

This can also be written as 22 x 31 x 51 x 111 x 1091 x 3,2211 = 231,718,740

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 231,718,740:


Ask a Question