Q: What are the prime factors of the number 312,351,172?

 A: 2, 7, 11155399

Why are those the prime factors of the number 312,351,172?

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 312,351,172

312,351,172
Factor Arrows
2156,175,586
Factor Arrows
278,087,793
Factor Arrows
711,155,399

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, 7, 11155399

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 11,155,399 = 312,351,172

This can also be written as 22 x 71 x 11,155,3991 = 312,351,172

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 312,351,172:


Ask a Question