Q: What are the prime factors of the number 208,715,912?

 A: 2, 19, 41, 107, 313

Why are those the prime factors of the number 208,715,912?

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 208,715,912

208,715,912
Factor Arrows
2104,357,956
Factor Arrows
252,178,978
Factor Arrows
226,089,489
Factor Arrows
191,373,131
Factor Arrows
4133,491
Factor Arrows
107313

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, 19, 41, 107, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 19 x 41 x 107 x 313 = 208,715,912

This can also be written as 23 x 191 x 411 x 1071 x 3131 = 208,715,912

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 208,715,912:


Ask a Question