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Eisenstein prime
(mathematics) Any Eisenstein integer that is prime.
prime ideals
plural of prime ideal
prime ring
(algebra, ring theory) Any nonzero ring R such that for any two (two-sided) ideals P and Q in R, the product PQ = 0 (the zero ideal) if and only if P = 0 or Q = 0.
prime rings
plural of prime ring
prime triplet
(mathematics) An ordered set of three prime numbers in which the smallest and largest of the three differ by six.
Mersenne prime
(number theory) A prime number which is one less than a power of two (i.e., is expressible in the form 2ⁿ-1; for example, 31=2⁵-1).
Fermat prime
(number theory) A Fermat number that is prime.
almost prime
(number theory) A natural number for which there exists an absolute constant K such that the number has at most K prime factors.