#### Astral Peaks

##### Well-known member

- Joined
- Nov 9, 2010

- Messages
- 25,986

The largest prime number yet discoveredMathematicians like discovering high primes not because they are useful (or not yet, anyway) but because they are there. It is a fun challenge and a measure of the power of distributed computing projects. The campaign group Electronic Frontier Foundation gave a prize for the first 1m-digit and 10m-digit primes, and will give $150,000 (£96,000) to the discoverer of the first 100m-digit prime.

Personally, I thought Euclid's proof was simple: multiply all the primes known together and add 1.

This new large number is either prime or divisible by an unknown larger prime - in either case a larger prime has been found.

But what do I know.....I am an Arts and Business graduate!!