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  2. Highly composite number - Wikipedia

    en.wikipedia.org/wiki/Highly_composite_number

    It means that 1, 4, and 36 are the only square highly composite numbers. Saying that the sequence of exponents is non-increasing is equivalent to saying that a highly composite number is a product of primorials or, alternatively, the smallest number for its prime signature .

  3. Least common multiple - Wikipedia

    en.wikipedia.org/wiki/Least_common_multiple

    A multiple of a number is the product of that number and an integer. For example, 10 is a multiple of 5 because 5 × 2 = 10, so 10 is divisible by 5 and 2. Because 10 is the smallest positive integer that is divisible by both 5 and 2, it is the least common multiple of 5 and 2.

  4. Halt and Catch Fire (computing) - Wikipedia

    en.wikipedia.org/wiki/Halt_and_Catch_Fire...

    The Motorola 6800 microprocessor was the first for which an undocumented assembly mnemonic HCF became widely known. The operation codes (opcodes—the portions of the machine language instructions that specify an operation to be performed) hexadecimal 9D and DD were reported and given the unofficial mnemonic HCF in a December 1977 article by Gerry Wheeler in BYTE magazine on undocumented ...

  5. Euclidean algorithm - Wikipedia

    en.wikipedia.org/wiki/Euclidean_algorithm

    [48] The Euclidean algorithm was the first integer relation algorithm , which is a method for finding integer relations between commensurate real numbers. Several novel integer relation algorithms have been developed, such as the algorithm of Helaman Ferguson and R.W. Forcade (1979) [ 49 ] and the LLL algorithm .

  6. List of U.S. Air Route Traffic Control Centers - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._Air_Route...

    Facility Name Air Carrier Air Taxi General Aviation Military Total HCF Honolulu Control Facility 377,709 48,106 19,379 24,743 469,937 JCF Joshua Control Facility

  7. List of mathematical abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical...

    hcfhighest common factor of two numbers. (Also written as gcd.) H.M. – harmonic mean. HOL – higher-order logic. Hom – Hom functor. hom – hom-class. hot – higher order term. HOTPO – half or triple plus one. hvc – havercosine function. (Also written as havercos.) hyp – hypograph of a function.

  8. HCF - Wikipedia

    en.wikipedia.org/wiki/HCF

    HCF may refer to: Arts and entertainment. Halt and Catch Fire; Hot Club de France, a French jazz group; Half Circle Forward, a common move in fighting game special ...

  9. Superior highly composite number - Wikipedia

    en.wikipedia.org/wiki/Superior_highly_composite...

    Divisor function d(n) up to n = 250 Prime-power factors. In number theory, a superior highly composite number is a natural number which, in a particular rigorous sense, has many divisors.