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  2. Particle number - Wikipedia

    en.wikipedia.org/wiki/Particle_number

    The particle number is a fundamental parameter in thermodynamics which is conjugate to the chemical potential. Unlike most physical quantities , particle number is a dimensionless quantity . It is an extensive parameter , as it is directly proportional to the size of the system under consideration, and thus meaningful only for closed systems .

  3. Algebraic number - Wikipedia

    en.wikipedia.org/wiki/Algebraic_number

    An algebraic number is a number that is a root of a non-zero polynomial in one variable with integer (or, equivalently, rational) coefficients. For example, the golden ratio , ( 1 + 5 ) / 2 {\displaystyle (1+{\sqrt {5}})/2} , is an algebraic number, because it is a root of the polynomial x 2 − x − 1 .

  4. Lists of UK Singles Chart number ones - Wikipedia

    en.wikipedia.org/wiki/Lists_of_UK_Singles_Chart...

    The Beatles' first chart-topper, "From Me to You", reached number one in May 1963. In the 1970s, the required number of sales needed to top the chart was roughly 150,000. During 1992, when few releases were reaching number one, sales of CD singles were low: songs needed to sell only 60–70,000 each week to remain at the top.

  5. List of Billboard number-one singles - Wikipedia

    en.wikipedia.org/wiki/List_of_Billboard_number...

    This is a list of songs that have peaked at number one on the Billboard Hot 100 and the magazine's national singles charts that preceded it. Introduced in 1958, the Hot 100 is the pre-eminent singles chart in the United States, currently monitoring the most popular singles in terms of popular radio play, single purchases and online streaming

  6. Cardinal numeral - Wikipedia

    en.wikipedia.org/wiki/Cardinal_numeral

    In linguistics, and more precisely in traditional grammar, a cardinal numeral (or cardinal number word) is a part of speech used to count. Examples in English are the words one , two , three , and the compounds three hundred and forty-two and nine hundred and sixty .

  7. List of Billboard number-one country songs of 2021 - Wikipedia

    en.wikipedia.org/wiki/List_of_Billboard_number...

    The year began with "Big, Big Plans" by Chris Lane returning to number one on the Country Airplay chart, having previously topped the listing in the issue of Billboard dated December 19, 2020, while "I Hope" by Gabby Barrett held the top spot on Hot Country Songs, the song's 22nd week atop the chart.

  8. 23 - Wikipedia

    en.wikipedia.org/wiki/23

    The Number 23, a 2007 film starring Jim Carrey; Music. 23, a German rap duo composed of Bushido and Sido; Albums. 23, 2011, by German rappers Bushido and Sido alias 23; 23 (Blonde Redhead album), 2007; 23 (Rythem album), the third album from the Japanese duo, Rythem; 23 (Shadow Child EP), 2012, featuring Tymer; 23 (The Silents EP), 2007

  9. 65,537 - Wikipedia

    en.wikipedia.org/wiki/65,537

    65537 is also the 17th Jacobsthal–Lucas number, and currently the largest known integer n for which the number + is a probable prime. Applications. 65537 is commonly used as a public exponent in the RSA cryptosystem. Because it is the Fermat number F n = 2 2 n + 1 with n = 4, the common shorthand is "F 4" or "F4".