Frequently asked questions

Frequently asked questions about primes
(from the Prime Pages' list of frequently asked questions)

New record prime: 2^74,207,281-1 with 22,338,618 digits by Cooper, Woltman, Kurowski, Blosser & GIMPS (7 Jan 2016).

Home
Search Site

Largest
The 5000
Top 20
Finding
How Many?
Mersenne

Glossary
Prime Curios!
Prime Lists

FAQ
e-mail list
Titans

Submit primes

Here is a list of questions and answers for many of the frequently asked questions at this site. If you have difficulty finding what you want, you might try searching through the site.

The definition of prime:
Basic properties of primes
Lists and records
- What are the first
  - 1,000 Primes? (about 7k)
  - 10,000 Primes? (about 72k)
  - 100,008 Primes? (about 822k)
  - other lists of primes
- What is the
- What is the longest list of primes?
- Where is a list of the x-digit primes?
- I need a few small primes (say 10 to 300 digits)
Mersenne Numbers
- What are the known Mersenne primes?
- What are the decimal expansion of the Mersenne numbers? (and how do you "say" these numbers?)
- Where is the next Mersenne prime?
Miscellaneous
- What is the probability that gcd(n,m)=1?
- Why do people find these big primes?
Questions from those who find primes:
Questions from those who have proved something new
- I have a new result, what do I do with it?

Another prime page by Chris K. Caldwell <[email protected]>