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Bookmark or Share- Nineteen - definition of nineteen by The Free Dictionary1. (Mathematics) the cardinal number that is the sum of ten and nine and is a prime number. See also number 1. 2. (Mathematics) a numeral, 19, XIX, etc, representing this number. 3. (Mathematics) something represented by, representing, or consisting of 19 units. 4. talk nineteen to the dozen to talk incessantly.
- 19 (number) - Wikipedia19 is a centered triangular number. Nineteen is the eighth prime number. Number theory. 19 forms a twin prime with 17, [1] a cousin prime with 23, [2] and a sexy prime with 13. [3] 19 is the fifth central trinomial coefficient, [4] and the maximum number of fourth powers needed to sum up to any natural number (see, Waring's problem). [5] .
- 19 (number) - Simple English Wikipedia, the free encyclopedia19 (nineteen) is a number. It comes between eighteen and twenty, and is an odd number. It is also the 8th prime number, after 2, 3, 5, 7, 11, 13, and 17. In Ordinal, It’s 19th (nineteenth). In Roman numerals, 19 is written as XIX. .
- NINETEEN definition in American English - Collins Online Dictionary1. the cardinal number that is the sum of ten and nine and is a prime number. See also number (sense 1) 2. a numeral, 19, XIX, etc, representing this number. 3.
- Nineteen - Definition, Meaning & Synonyms | Vocabulary.comDefinitions of nineteen. noun. the cardinal number that is the sum of eighteen and one. synonyms: 19, XIX. see more.
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