twin prime

English

Noun

twin prime (plural twin primes)

1. (mathematics) Either of a pair of prime numbers that differ by two.

   5 and 7, and 191 and 193, are pairs of twin primes.

Usage notes

• 2 and 3 are not generally considered to be twin primes, although they appear in a cluster, since 2 is the only even prime number so two consecutive prime numbers cannot differ by 1.

Translations

either of a pair of prime numbers that differ by two

• Icelandic: frumtalnatvíburi m, tvíburafrumtala f
• Spanish: primo gemelo m
• Swedish: tvillingprimtal n, primtalstvilling (sv)

See also

• cousin prime
• prime constellation
• sexy prime
• twin prime pair