+A prime quadruplet is a sequence of four [prime numbers](/wiki/prime_number) of the form $(p, p+2, p+6, p+8)$. These unique sets combine two [twin primes](/wiki/twin_prime) and represent the densest possible grouping of four primes, such as (5, 7, 11, 13).
+## See also
+- [Twin Prime](/wiki/twin_prime)
+- [Prime Triplet](/wiki/prime_triplet)
+- [Prime Gap](/wiki/prime_gap)
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