Q: What are the prime factors of the number 31,046,456?

 A: 2, 7, 19, 29179

Why are those the prime factors of the number 31,046,456?

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 31,046,456

31,046,456
Factor Arrows
215,523,228
Factor Arrows
27,761,614
Factor Arrows
23,880,807
Factor Arrows
7554,401
Factor Arrows
1929,179

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, 19, 29179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 19 x 29,179 = 31,046,456

This can also be written as 23 x 71 x 191 x 29,1791 = 31,046,456

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 31,046,456:


Ask a Question