primorial

Fetched 2026-10-26 (cache).

Synonyms: primordial, risorial, armorial, primitial, perimortal, pretorial, primatial, primordia, primordian, premoral, premortal

Antonyms: primordial, risorial, armorial, primitial, perimortal, pretorial, primatial, primordia, primordian, premoral, premortal

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|number theory}} Any number belonging to the integer [[sequence]] whose ''n''th element is the product of the first ''n'' [[prime]]s.
2. {{lb|en|number theory}} 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.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.