Q: What are the prime factors of the number 31,846,272?

 A: 2, 3, 239, 347

Why are those the prime factors of the number 31,846,272?

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 31,846,272

31,846,272
Factor Arrows
215,923,136
Factor Arrows
27,961,568
Factor Arrows
23,980,784
Factor Arrows
21,990,392
Factor Arrows
2995,196
Factor Arrows
2497,598
Factor Arrows
2248,799
Factor Arrows
382,933
Factor Arrows
239347

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, 239, 347

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 2 x 3 x 239 x 347 = 31,846,272

This can also be written as 27 x 31 x 2391 x 3471 = 31,846,272

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 31,846,272:


Ask a Question