Q: What are the prime factors of the number 256,214,055?

 A: 3, 5, 17, 1004761

Why are those the prime factors of the number 256,214,055?

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 256,214,055

256,214,055
Factor Arrows
385,404,685
Factor Arrows
517,080,937
Factor Arrows
171,004,761

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:

3, 5, 17, 1004761

We can check our work by multiplying all of the prime factors together: 3 x 5 x 17 x 1,004,761 = 256,214,055

This can also be written as 31 x 51 x 171 x 1,004,7611 = 256,214,055

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 256,214,055:


Ask a Question