**Prime number** — Prime redirects here. For other uses, see Prime (disambiguation). A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is… … Wikipedia

**Prime number** — Prime Prime, a. [F., fr. L. primus first, a superl. corresponding to the compar. prior former. See {Prior}, a., {Foremost}, {Former}, and cf. {Prim}, a., {Primary}, {Prince}.] 1. First in order of time; original; primeval; primitive; primary.… … The Collaborative International Dictionary of English

**prime number** — prime numbers N COUNT In mathematics, a prime number is a whole number greater than 1 that cannot be divided exactly by any whole number except itself and the number 1, for example 17 … English dictionary

**prime number** — n a number that can be divided only by itself and the number one. For example, three and seven are prime numbers … Dictionary of contemporary English

**prime number** — n. an integer that can be evenly divided by no other whole number than itself or 1, as 2, 3, 5, or 7: distinguished from COMPOSITE NUMBER … English World dictionary

**prime number** — noun count a number that can only be divided exactly by itself and one, for example seven … Usage of the words and phrases in modern English

**prime number** — noun an integer that has no integral factors but itself and 1 • Hypernyms: ↑prime, ↑prime quantity * * * noun : an integer other than 0 or ±1 that is not divisible without remainder by any other integers except ±1 and ± the integer itself * * *… … Useful english dictionary

**prime number** — UK / US noun [countable] Word forms prime number : singular prime number plural prime numbers maths a number that can only be divided exactly by itself and the number 1, for example 7 … English dictionary

**prime number** — /ˈpraɪm nʌmbə/ (say pruym numbuh) noun a positive integer not exactly divisible by any integer except itself and unity: 5 is a prime number … Australian-English dictionary

**prime number** — prime′ num′ber n. math. a positive integer that is not divisible without remainder by any integer except itself and 1 • Etymology: 1585–95 … From formal English to slang