Q: What are the prime factors of the number 31,434,048?

 A: 2, 3, 18191

Why are those the prime factors of the number 31,434,048?

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 31,434,048

31,434,048
Factor Arrows
215,717,024
Factor Arrows
27,858,512
Factor Arrows
23,929,256
Factor Arrows
21,964,628
Factor Arrows
2982,314
Factor Arrows
2491,157
Factor Arrows
3163,719
Factor Arrows
354,573
Factor Arrows
318,191

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, 18191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 18,191 = 31,434,048

This can also be written as 26 x 33 x 18,1911 = 31,434,048

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 31,434,048:


Ask a Question