Q: What are the prime factors of the number 128,265,902?

 A: 2, 37, 71, 24413

Why are those the prime factors of the number 128,265,902?

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 128,265,902

128,265,902
Factor Arrows
264,132,951
Factor Arrows
371,733,323
Factor Arrows
7124,413

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, 37, 71, 24413

We can check our work by multiplying all of the prime factors together: 2 x 37 x 71 x 24,413 = 128,265,902

This can also be written as 21 x 371 x 711 x 24,4131 = 128,265,902

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 128,265,902:


Ask a Question