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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 U.S. Patent No. 2,950,048, granted on August 23, 1960.
Physical properties. Pure sodium hydroxide is a colorless crystalline solid that melts at 318 °C (604 °F) without decomposition and boils at 1,388 °C (2,530 °F). It is highly soluble in water, with a lower solubility in polar solvents such as ethanol and methanol. [14] Sodium hydroxide is insoluble in ether and other non-polar solvents.
Twenty is a pronic number, as it is the product of consecutive integers, namely 4 and 5. [3] It is the third composite number to be the product of a squared prime and a prime (and also the second member of the 22 × q family in this form). It has an aliquot sum of 22; a semiprime, within an aliquot sequence of four composite numbers (20, 22, 14 ...
Staples's logo from 1998 to 2019. Staples Inc. is an American office supply retail company headquartered in Framingham, Massachusetts . Founded by Leo Kahn and Thomas G. Stemberg, the company opened its first store in Brighton, Massachusetts on May 1, 1986. [5] By 1996, it had reached the Fortune 500, and it later acquired the office supplies ...
The Khmer Rouge (/ k ə ˌ m ɛər ˈ r uː ʒ /; French: [kmɛʁ ʁuʒ]; Khmer: ខ្មែរក្រហម, Khmêr Krâhâm [kʰmae krɑːhɑːm]; lit. ' Red Khmer ') is the name that was popularly given to members of the Communist Party of Kampuchea (CPK) and by extension to the regime through which the CPK ruled Cambodia between 1975 and 1979.
Julie Frost, winner of the 2010 contest for Germany. Stefan Örn, winner of the 2011 contest for Azerbaijan. Thomas G:son, winner of the 2012 and 2023 contests for Sweden. Thomas Stengaard (left), Julia Fabrin Jakobsen (centre) and Lise Cabble (right), winner of the 2013 contest for Denmark.
20 And she lusted after her male lovers whose genitalia were the genitalia of male donkeys and their seminal emission was the seminal emission of horses. Ezekiel 23:18–20 Lexham English Bible Ancient Chinese legend holds that a man named Lao Ai had the largest penis in history and that he had an affair with Queen Dowager Zhao ( c. 280–228 ...