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  2. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    This is the minimum number of characters needed to encode a 32 bit number into 5 printable characters in a process similar to MIME-64 encoding, since 85 5 is only slightly bigger than 2 32. Such method is 6.7% more efficient than MIME-64 which encodes a 24 bit number into 4 printable characters. 89

  3. 15 (number) - Wikipedia

    en.wikipedia.org/wiki/15_(number)

    M = 15 The 15 perfect matchings of K 6 15 as the difference of two positive squares (in orange).. 15 is: The eighth composite number and the sixth semiprime and the first odd and fourth discrete semiprime; [1] its proper divisors are 1, 3, and 5, so the first of the form (3.q), [2] where q is a higher prime.

  4. List of types of numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_numbers

    Such a number is algebraic and can be expressed as the sum of a rational number and the square root of a rational number. Constructible number: A number representing a length that can be constructed using a compass and straightedge. Constructible numbers form a subfield of the field of algebraic numbers, and include the quadratic surds.

  5. List of ISO 639 language codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_639_language_codes

    Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). [2] Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural languages, largely superseding the ISO 639-2 three-letter code standard.

  6. Mathematicians Discovered Something Mind-Blowing About the ...

    www.aol.com/lifestyle/mathematicians-discovered...

    The simple number solves a notoriously complicated problem. For premium support please call: 800-290-4726 more ways to reach us

  7. Gregg shorthand - Wikipedia

    en.wikipedia.org/wiki/Gregg_shorthand

    Gregg Shorthand Alphabet, with letters and words from Esperanto. Gregg shorthand is a system of phonography, or a phonemic writing system, which means it records the sounds of the speaker, not the English spelling. [4] For example, it uses the f stroke for the / f / sound in funnel, telephone, and laugh, [8] and omits all silent letters. [4]

  8. Chinese numerals - Wikipedia

    en.wikipedia.org/wiki/Chinese_numerals

    Simplified [3]: §52 Traditional Simplified 0: 零: 零 or 〇: líng: ling4: khòng, lêng: lin: Usually 零 is preferred, but in some areas, 〇 may be a more common informal way to represent zero. The original Chinese character is 空 or 〇, 零 is referred as remainder something less than 1 yet not nil [說文] referred.

  9. Alphabetic numeral system - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_numeral_system

    The Greek alphabet has 24 letters; three additional letters had to be incorporated in order to reach 900. Unlike the Greek, the Hebrew alphabet's 22 letters allowed for numerical expression up to 400. The Arabic abjad's 28 consonant signs could represent numbers up to 1000. Ancient Aramaic alphabets had enough letters to reach up to 9000.