Q: What are the prime factors of the number 100,872,254?

 A: 2, 7, 17, 19, 22307

Why are those the prime factors of the number 100,872,254?

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 100,872,254

100,872,254
Factor Arrows
250,436,127
Factor Arrows
77,205,161
Factor Arrows
17423,833
Factor Arrows
1922,307

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, 17, 19, 22307

We can check our work by multiplying all of the prime factors together: 2 x 7 x 17 x 19 x 22,307 = 100,872,254

This can also be written as 21 x 71 x 171 x 191 x 22,3071 = 100,872,254

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 100,872,254:


Ask a Question