Sophie Germain primes

GPTKB entity

Statements (35)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkb:Prime_Number
gptkbp:alsoKnownAs safe prime precursor
gptkbp:application cryptography
public key cryptography
gptkbp:category gptkb:Number_theory
Prime numbers
Mathematical sequences
gptkbp:defines A prime number p such that 2p + 1 is also prime
gptkbp:distribution Estimated to be about C x n/(log n)^2 for primes less than n, where C is the twin prime constant
gptkbp:example 2
11
23
29
3
41
5
113
53
83
89
gptkbp:hasConjecture There are infinitely many Sophie Germain primes
https://www.w3.org/2000/01/rdf-schema#label Sophie Germain primes
gptkbp:namedAfter gptkb:Sophie_Germain
gptkbp:openProblem Are there infinitely many Sophie Germain primes?
gptkbp:property If p is a Sophie Germain prime, then 2p+1 is a safe prime
If p > 3 is a Sophie Germain prime, then p ≡ 2 (mod 3)
If p is a Sophie Germain prime, then 2p+1 is also prime
All Sophie Germain primes greater than 3 are congruent to 2 mod 3
gptkbp:relatedTo safe prime
gptkbp:sequence gptkb:A005384
gptkbp:studiedIn number theory
gptkbp:bfsParent gptkb:Unsolved_Problems_in_Number_Theory
gptkb:Prime_Number
gptkbp:bfsLayer 6