Q: What are the prime factors of the number 123,858,904?

 A: 2, 13, 1190951

Why are those the prime factors of the number 123,858,904?

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 123,858,904

123,858,904
Factor Arrows
261,929,452
Factor Arrows
230,964,726
Factor Arrows
215,482,363
Factor Arrows
131,190,951

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, 13, 1190951

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 1,190,951 = 123,858,904

This can also be written as 23 x 131 x 1,190,9511 = 123,858,904

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 123,858,904:


Ask a Question