'No practical use' for 17-million digit prime number

Help

A new prime number, thought to be the largest ever identified, has been discovered by a professor at the University of Central Missouri.

Curtis Cooper used a giant computer network to do the work to find the 17-million digit number - which is a number divisible only by itself and by one.

Speaking to the Today programme about what use the number may be, Mr Cooper said: "I don't know of any practical application of the fact that this number is prime.

"But with that being said, there are some side effects from this process we went through, this idea of taking a big problem and putting out on thousands of PCs and letting them work on the problem, and then finding something at the end."

First broadcast on BBC Radio 4's Today Programme on Friday 8 February 2013.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.