Q: What are the prime factors of the number 15,615,808?

 A: 2, 13, 137

Why are those the prime factors of the number 15,615,808?

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 15,615,808

15,615,808
Factor Arrows
27,807,904
Factor Arrows
23,903,952
Factor Arrows
21,951,976
Factor Arrows
2975,988
Factor Arrows
2487,994
Factor Arrows
2243,997
Factor Arrows
1318,769
Factor Arrows
137137

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, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 13 x 137 x 137 = 15,615,808

This can also be written as 26 x 131 x 1372 = 15,615,808

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 15,615,808:


Ask a Question