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  2. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [ 1]

  3. Modular arithmetic - Wikipedia

    en.wikipedia.org/wiki/Modular_arithmetic

    Adding 4 hours to 9 o'clock gives 1 o'clock, since 13 is congruent to 1 modulo 12. In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus. The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones ...

  4. Modulo - Wikipedia

    en.wikipedia.org/wiki/Modulo

    Modulo. In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another (called the modulus of the operation). Given two positive numbers a and n, a modulo n (often abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the ...

  5. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  6. Union Station (Columbus, Ohio) - Wikipedia

    en.wikipedia.org/wiki/Union_Station_(Columbus,_Ohio)

    January 17, 1974. Delisted. 1999. Reference no. 74002344. Columbus Union Station was an intercity train station in Downtown Columbus, Ohio, near The Short North neighborhood. The station and its predecessors served railroad passengers in Columbus from 1851 until April 28, 1977. The first station building was the first union station in the world ...

  7. List of tallest buildings in Columbus, Ohio - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_buildings...

    Notes. 1. Rhodes State Office Tower. 624 (190) 41. 1973. 30 East Broad Street. The 5th- tallest building in Ohio and the tallest building constructed in Columbus in the 1970s. It is the tallest office building in Columbus and the tallest mid-block building in Ohio.

  8. United States District Court for the Southern District of ...

    en.wikipedia.org/wiki/United_States_District...

    The United States District Court for the Southern District of Ohio (in case citations, S.D. Ohio) is one of two United States district courts in Ohio and includes forty-eight of the state's eighty-eight counties—everything from the Columbus area southward. Appeals from the court are taken to the United States Court of Appeals for the Sixth ...

  9. High Street (Columbus, Ohio) - Wikipedia

    en.wikipedia.org/wiki/High_Street_(Columbus,_Ohio)

    High Street is a major thoroughfare in Central Ohio, predominantly in Franklin County and Columbus. It stretches from the northern border of Columbus in Delaware County south to the southern boundary of Franklin County just past Columbus's municipal boundaries. The street is considered one of Columbus's two main roads, along with Broad Street .