Category:Prime Numbers
A prime number is defined as a positive integer which has exactly two factors: one and itself. A factor of a number is an integer which divides evenly into it--that is, divides with a remainder of zero. By this definition one and zero are not prime. One only has one factor (which is itself), and zero divided by any number always has a remainder of zero, so it effectively has an infinite number of factors.
Below is a list of tasks which involve the calculation or use of prime numbers.
Pages in category "Prime Numbers"
The following 114 pages are in this category, out of 114 total.
A
C
- Carmichael 3 strong pseudoprimes
- Carmichael lambda function
- Chernick's Carmichael numbers
- Chowla numbers
- Circular primes
- Concatenate two primes is also prime
- Consecutive primes with ascending or descending differences
- Coprime triplets
- Coprimes
- Count in factors
- Cousin primes
- Cuban primes
- Cubic special primes
- Cyclops numbers
F
L
M
N
P
- Palindromic primes
- Palindromic primes in base 16
- Pandigital prime
- Partition an integer x into n primes
- Perfect numbers
- Pernicious numbers
- Pierpont primes
- Piprimes
- Pisano period
- Primality by trial division
- Primality by Wilson's theorem
- Prime conspiracy
- Prime decomposition
- Prime numbers which contain 123
- Prime triplets
- Prime words
- Primes - allocate descendants to their ancestors
- Primes which contain only one odd digit
- Primes whose first and last number is 3
- Primes whose sum of digits is 25
- Primes with digits in nondecreasing order
- Primorial numbers
- Proper divisors
S
- Safe and Sophie Germain primes
- Safe primes and unsafe primes
- Semiprime
- Sequence of primes by trial division
- Sequence of primorial primes
- Sexy primes
- Sieve of Eratosthenes
- Sieve of Pritchard
- Smarandache prime-digital sequence
- Special neighbor primes
- Square form factorization
- Strange numbers
- Strange plus numbers
- Strange unique prime triplets
- Strong and weak primes
- Substring primes
- Successive prime differences
- Sum of primes in odd positions is prime