# Category:Prime Numbers

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This category contains results about **Prime Numbers**.

Definitions specific to this category can be found in Definitions/Prime Numbers.

A **prime number** $p$ is a positive integer that has exactly two divisors which are themselves positive integers.

## Subcategories

This category has the following 76 subcategories, out of 76 total.

### B

### C

- Cunningham Chains (4 P)

### D

- Deletable Primes (3 P)
- Divisor Sum of Prime Number (3 P)

### E

- Euclid's Theorem (16 P)

### F

- Feit-Thompson Conjecture (3 P)
- Fermat Quotients (2 P)
- Fermat's Two Squares Theorem (6 P)

### G

- Gigantic Primes (1 P)
- Goldbach Conjecture (6 P)
- Goldbach's Lesser Conjecture (4 P)

### I

### L

- LCM from Prime Decomposition (11 P)

### M

### N

### O

- One is not Prime (3 P)

### P

- Prime Gaps (11 P)
- Prime Number is Deficient (3 P)
- Prime Numbers/Examples (481 P)
- Prime Triplets (1 P)
- Primitive Prime Factors (1 P)

### R

### S

### T

### U

### W

- Wilson's Theorem (13 P)
- Wolstenholme's Theorem (1 P)

## Pages in category "Prime Numbers"

The following 172 pages are in this category, out of 172 total.

### A

### C

### D

### E

- Equal Consecutive Prime Number Gaps are Multiples of Six
- Equivalence of Definitions of Prime Number
- Euclid's Lemma for Prime Divisors
- Euclid's Theorem
- Euler Phi Function of Prime
- Euler Phi Function of Prime Power
- Euler Phi Function of Prime Power/Corollary
- Euler's Theorem (Number Theory)/Corollary 1
- Even Integers not Expressible as Sum of 3, 5 or 7 with Prime
- Existence of Prime between Prime and Factorial
- Existence of Prime-Free Sequence of Natural Numbers
- Existence of Product of Three Distinct Primes between n and 2n
- Exponents of Primes in Prime Decomposition are Less iff Divisor
- Expression for Integer as Product of Primes is Unique

### F

### G

### I

- Infinite Number of Chen Primes
- Infinite Number of Chen Primes/Historical Note
- Infinite Number of Primes of form 4n - 1
- Integer as Sum of 27 Primes
- Integer Greater than 121 is Sum of Distinct Primes of form 4 n + 1
- Integer Greater than 205 is Sum of Distinct Primes of form 6 n + 1
- Integer is Expressible as Product of Primes
- Integers not Expressible as Sum of Distinct Primes of form 6n-1
- Integers whose Number of Representations as Sum of Two Primes is Maximum
- Integers with Prime Values of Divisor Sum
- Interval containing Prime Number of forms 4n - 1, 4n + 1, 6n - 1, 6n + 1
- Is there an Infinite Number of Primes of Form n^2 + 1?

### L

- Largest Integer whose Digits taken in Pairs all form Distinct Primes
- Largest Number not Sum of Squares of Distinct Primes
- LCM from Prime Decomposition
- Limit of Difference between Consecutive Prime Numbers
- Longest Sequence of Consecutive Primes in Arithmetic Sequence
- Lucas' Theorem
- Lucas' Theorem/Corollary
- Lucas-Lehmer Test

### N

- Natural Number is Prime or has Prime Factor
- No Arithmetic Sequence of 4 Primes with Common Difference 2
- No Arithmetic Sequence of 4 Primes with Common Difference 2/Corollary
- Not Coprime means Common Prime Factor
- Number as Sum of Distinct Primes
- Number as Sum of Distinct Primes greater than 11
- Number of Integer Partitions into Sum of Consecutive Primes
- Number of Non-Dividing Primes Less than n is Less than Euler Phi Function of n
- Number of Primes of Form n^2 + 1
- Number of Quadratic Residues of Prime
- Number of Representations as Sum of Two Primes
- Numbers equal to Sum of Primes not Greater than its Prime Counting Function Value
- Numbers not Sum of Square and Prime
- Numbers of Primes with at most n Digits
- Numbers that cannot be made Prime by changing 1 Digit
- Numbers with 6 or more Prime Factors
- Numbers with 7 or more Prime Factors

### O

### P

- Palindromic Primes in Base 10 and Base 2
- Period of Reciprocal of Prime
- Positive Integer Greater than 1 has Prime Divisor
- Positive Integers Not Expressible as Sum of Distinct Non-Pythagorean Primes
- Power of Sum Modulo Prime
- Power of Sum Modulo Prime/Corollary
- Prime between n and 9 n divided by 8
- Prime Decomposition of 2^58+1
- Prime Divides Power
- Prime Divisor of Coprime Integers
- Prime Dudeney Number
- Prime equals Plus or Minus One modulo 6
- Prime iff Coprime to all Smaller Positive Integers
- Prime iff Equal to Product
- Prime not Divisor implies Coprime
- Prime Number Formed by Concatenating Consecutive Integers down to 1
- Prime Number has 4 Integral Divisors
- Prime Number is Deficient
- Prime Number Theorem
- Prime Numbers Composed of Strings of Consecutive Ascending Digits
- Prime Numbers Embedded in Digits of Pi
- Prime Numbers of form Factorial Minus 1
- Prime Numbers of form Factorial Plus 1
- Prime Numbers which Divide Sum of All Lesser Primes
- Prime Numbers which Divide Sum of All Lesser Primes/Examples
- Prime Power of Sum Modulo Prime
- Prime Power of Sum Modulo Prime/Corollary
- Prime Sum of Squares of 3 Prime Numbers
- Prime to Own Power minus 1 over Prime minus 1 being Prime
- Prime-Generating Quadratics of form 2 a squared plus p
- Primes Expressible as x^2 + n y^2 for all n from 1 to 10
- Primes for which Powers to Themselves minus 1 have Common Factors
- Primes not Sum of or Difference between Powers of 2 and 3
- Primes of Form n^2 + 1
- Primes of form Power Less One
- Primes of form Power of Two plus One
- Primes whose Digits are Consecutive Ascending from 1

### R

### S

- Schatunowsky's Theorem
- Sequence of 11 Primes by Trebling and Adding 16
- Sequence of 5 Consecutive Non-Primable Numbers by Changing 1 Digit
- Sequence of 7 Consecutive Integers including Multiple of Prime greater than 41
- Sequence of 9 Primes of form 4n+1
- Sequence of Integers whose Factorial minus 1 is Prime
- Sequence of Integers whose Factorial plus 1 is Prime
- Sequence of Numbers Divisible by Sequence of Primes
- Set of Rational Numbers whose Numerator Divisible by p is Closed under Addition
- Set of Rational Numbers whose Numerator Divisible by p is Closed under Multiplication
- Sets of 4 Prime Quadruples
- Sheldon Conjecture
- Sieve of Eratosthenes
- Smallest 10 Primes in Arithmetic Sequence
- Smallest 17 Primes in Arithmetic Sequence
- Smallest 18 Primes in Arithmetic Sequence
- Smallest 22 Primes in Arithmetic Sequence
- Smallest 5 Consecutive Primes in Arithmetic Sequence
- Smallest n such that 6 n + 1 and 6 n - 1 are both Composite
- Smallest Odd Number not of form 2 a squared plus p
- Smallest Positive Integer which is Sum of 2 Odd Primes in 6 Ways
- Smallest Positive Integer which is Sum of 2 Odd Primes in n Ways
- Smallest Titanic Palindromic Prime
- Solutions to p^2 Divides 10^p - 10
- Square Root of Prime is Irrational
- Sum of 714 and 715
- Sum of Pandigital Triplet of 3-Digit Primes
- Sum of Reciprocals of Twin Primes
- Sum of Sequence of Alternating Positive and Negative Factorials being Prime
- Sum of Sequence of Squares of Primes
- Sum of Unitary Divisors of Power of Prime
- Sum over k to p over 2 of Floor of 2kq over p