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  2. Roman numerals - Wikipedia

    en.wikipedia.org/wiki/Roman_numerals

    The Roman numerals, in particular, are directly derived from the Etruscan number symbols: 𐌠 , 𐌡 , 𐌢 , 𐌣 , and 𐌟 for 1, 5, 10, 50, and 100 (they had more symbols for larger numbers, but it is unknown which symbol represents which number). As in the basic Roman system, the Etruscans wrote the symbols that added to the desired ...

  3. Roman numeral analysis - Wikipedia

    en.wikipedia.org/wiki/Roman_numeral_analysis

    The system came about initially from the work and writings of Rameau's fundamental bass. The earliest usage of Roman numerals may be found in the first volume of Johann Kirnberger's Die Kunst des reinen Satzes in 1774. [3] Soon after, Abbé Georg Joseph Vogler occasionally employed Roman numerals in his Grunde der Kuhrpfälzischen Tonschule in ...

  4. Number Forms - Wikipedia

    en.wikipedia.org/wiki/Number_Forms

    Roman Numeral Three 2162 8546 Ⅳ IV: 4 Roman Numeral Four 2163 8547 Ⅴ V: 5 Roman Numeral Five 2164 8548 Ⅵ VI: 6 Roman Numeral Six 2165 8549 Ⅶ VII: 7 Roman Numeral Seven 2166 8550 Ⅷ VIII: 8 Roman Numeral Eight 2167 8551 Ⅸ IX: 9 Roman Numeral Nine 2168 8552 Ⅹ X: 10 Roman Numeral Ten 2169 8553 Ⅺ XI: 11 Roman Numeral Eleven 216A 8554 ...

  5. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    "A base is a natural number B whose powers (B multiplied by itself some number of times) are specially designated within a numerical system." [1]: 38 The term is not equivalent to radix, as it applies to all numerical notation systems (not just positional ones with a radix) and most systems of spoken numbers. [1]

  6. Numeral system - Wikipedia

    en.wikipedia.org/wiki/Numeral_system

    The number the numeral represents is called its value. Not all number systems can represent the same set of numbers; for example, Roman numerals cannot represent the number zero. Ideally, a numeral system will: Represent a useful set of numbers (e.g. all integers, or rational numbers)

  7. 666 (number) - Wikipedia

    en.wikipedia.org/wiki/666_(number)

    666 is a Smith number and Harshad number in base ten. [13] [14] The 27th indexed unique prime in decimal features a "666" in the middle of its sequence of digits. [15] [c] The Roman numeral for 666, DCLXVI, has exactly one occurrence of all symbols whose value is less than 1000 in decreasing order (D = 500, C = 100, L = 50, X = 10, V = 5, I = 1 ...

  8. Sign-value notation - Wikipedia

    en.wikipedia.org/wiki/Sign-value_notation

    In Roman numerals, for example, X means ten and L means fifty, so LXXX means eighty (50 + 10 + 10 + 10). Although signs may be written in a conventional order the value of each sign does not depend on its place in the sequence, and changing the order does not affect the total value of the sequence in an additive system.

  9. List of numeral system topics - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_system_topics

    Pentadic numerals – Runic notation for presenting numbers; Senary numeral system (base 6) Septenary numeral system (base 7) Octal numeral system (base 8) Nonary (novenary) numeral system (base 9) Decimal (denary) numeral system (base 10) Bi-quinary coded decimal – Numeral encoding scheme; Negative base numeral system (base −10) Duodecimal ...