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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]
This is a unit of fame or hype, derived from the dictum attributed to Andy Warhol that "everyone will be world-famous for fifteen minutes". It represents fifteen minutes of fame. Some multiples are: 1 kilowarhol – famous for 15,000 minutes, or 10.42 days. A sort of metric "nine-day wonder".
The United States is the largest operator of military bases abroad, with 38 "named bases" [note 1] with active duty, national guard, reserve, or civilian personnel as of September 30, 2014. Its largest, in terms of personnel, was Ramstein AB in Germany, with almost 9,200 personnel.
The multiplicative order of a number a modulo n is the order of a in the multiplicative group whose elements are the residues modulo n of the numbers coprime to n, and whose group operation is multiplication modulo n. This is the group of units of the ring Zn; it has φ ( n) elements, φ being Euler's totient function, and is denoted as U ( n ...
With the exceptions of 1, 8 and 144 (F 1 = F 2, F 6 and F 12) every Fibonacci number has a prime factor that is not a factor of any smaller Fibonacci number (Carmichael's theorem). [56] As a result, 8 and 144 (F 6 and F 12) are the only Fibonacci numbers that are the product of other Fibonacci numbers. [57]
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Royal Air Force Fylingdales or more simply RAF Fylingdales is a Royal Air Force station on Snod Hill in the North York Moors, England. Its motto is Vigilamus ("We are watching"). [ 1] It is a radar base and is also part of the Ballistic Missile Early Warning System (BMEWS). As part of intelligence-sharing arrangements between the United States ...
The Ministry of Defence ( MOD or MoD) is a ministerial department of the Government of the United Kingdom. It is responsible for implementing the defence policy set by the government and serves as the headquarters of the British Armed Forces . The MOD states that its principal objectives are to defend the United Kingdom of Great Britain and ...