Q: What are the prime factors of the number 251,756,424?

 A: 2, 3, 29, 13397

Why are those the prime factors of the number 251,756,424?

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 251,756,424

251,756,424
Factor Arrows
2125,878,212
Factor Arrows
262,939,106
Factor Arrows
231,469,553
Factor Arrows
310,489,851
Factor Arrows
33,496,617
Factor Arrows
31,165,539
Factor Arrows
3388,513
Factor Arrows
2913,397

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, 29, 13397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 29 x 13,397 = 251,756,424

This can also be written as 23 x 34 x 291 x 13,3971 = 251,756,424

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 251,756,424:


Ask a Question