A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
Primorial
In mathematics, and more particularly in number theory, primorial is a function from natural numbers to natural numbers similar to the factorial function, but rather than successively multiplying positive integers, only prime numbers are multiplied.
11 (number)
11 (eleven /ᵻˈlɛvᵻn/ or /iˈlɛvɛn/) is the natural number following 10 and preceding 12.
13 (number)
13 (thirteen /θɜːrˈtiːn/) is the natural number following 12 and preceding 14.
3 (number)
3 (three; /ˈθriː/) is a number, numeral, and glyph.
5 (number)
5 (five /ˈfaɪv/) is a number, numeral, and glyph.
7 (number)
7 (seven; /ˈsɛvən/) is the natural number following 6 and preceding 8.
Great Internet Mersenne Prime Search
The Great Internet Mersenne Prime Search (GIMPS) is a collaborative project of volunteers who use freely available software to search for Mersenne prime numbers.
Prime number
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
Probable prime
In number theory, a probable prime (PRP) is an integer that satisfies a specific condition that is satisfied by all prime numbers, but which is not satisfied by most composite numbers.
Fortunate number
A Fortunate number, named after Reo Fortune, for a given positive integer n is the smallest integer m > 1 such that pn# + m is a prime number, where the primorial pn# is the product of the first n prime numbers.