Q: What are the prime factors of the number 129,644,787?

 A: 3, 89, 113, 4297

Why are those the prime factors of the number 129,644,787?

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 129,644,787

129,644,787
Factor Arrows
343,214,929
Factor Arrows
89485,561
Factor Arrows
1134,297

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:

3, 89, 113, 4297

We can check our work by multiplying all of the prime factors together: 3 x 89 x 113 x 4,297 = 129,644,787

This can also be written as 31 x 891 x 1131 x 4,2971 = 129,644,787

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 129,644,787:


Ask a Question