Q: What are the prime factors of the number 331,313,312?

 A: 2, 11, 269, 3499

Why are those the prime factors of the number 331,313,312?

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 331,313,312

331,313,312
Factor Arrows
2165,656,656
Factor Arrows
282,828,328
Factor Arrows
241,414,164
Factor Arrows
220,707,082
Factor Arrows
210,353,541
Factor Arrows
11941,231
Factor Arrows
2693,499

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, 11, 269, 3499

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 269 x 3,499 = 331,313,312

This can also be written as 25 x 111 x 2691 x 3,4991 = 331,313,312

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 331,313,312:


Ask a Question