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primorial

noun
/pɹaɪ̯ˈmɔːɹi.əl/

Etymology

Blend of prime + factorial. Coined by American engineer and mathematician Harvey Dubner.

Definitions

  1. Any number belonging to the integer sequence whose nth element is the product of the…

    Any number belonging to the integer sequence whose nth element is the product of the first n primes.

  2. A unary operation, denoted by the postfix symbol # and defined on the nonnegative…

    A unary operation, denoted by the postfix symbol # and defined on the nonnegative integers, which maps 0 to 1, 1 to 1, and each subsequent number to the product of all primes less than or equal to it; the value mapped to by said operation for a given input.

    • The primorial of 6 is #92;textstyle 6#92;#35;#61;2#92;times 3#92;times 5#61;30.

The neighborhood

Vish — recursive loop

No curated loop yet for primorial. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA