twin prime

English

Noun

twin prime (plural twin primes)

(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,[1] tvíburafrumtala f[2]
Spanish: primo gemelo m
Swedish: tvillingprimtal n, primtalstvilling (sv)

See also

References

http://www.xn--st-2ia.is/os/leita/prime%20pair
Icelandic Web of Science: Til hvers notum við frumtölur? (“What are prime numbers good for?”)

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