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Digit sums and digital roots can be used for quick divisibility tests: a natural number is divisible by 3 or 9 if and only if its digit sum (or digital root) is divisible by 3 or 9, respectively. For divisibility by 9, this test is called the rule of nines and is the basis of the casting out nines technique for checking calculations.
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. However, 4 is composite because it is a ...
Allain is the author of La cientificidad del consciente: Conjeturas (2011) and various texts that have been published in Latin American media. His texts have been published in the anthologies Abofeteando a un cadáver [9] (2007), Poesía y narrativa hispanoamericana actual [10] (2010), Lima: visiones desde el dibujo y la poesía [11] (2010), Veinte poetas: muestra de poesía contemporánea [12 ...
Buenos Aires is based on a rectangular grid pattern, save for natural barriers or the relatively rare developments explicitly designed otherwise (most notably, the Parque Chas neighborhood). The rectangular grid provides for 110-meter (361 ft)-long square blocks named manzanas .
Julio José Iglesias de la Cueva (Spanish: [ˈxuljo jˈɣlesjas]; born 23 September 1943) is a Spanish singer, songwriter and former professional footballer.Iglesias is recognized as the most commercially successful Spanish singer in the world and one of the top record sellers in music history, having sold more than 300 million records worldwide [1] in 14 languages. [2]
Colombia, [b] officially the Republic of Colombia, [c] is a country primarily located in South America with insular regions in North America.The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuela to the east and northeast, Brazil to the southeast, Peru and Ecuador to the south and southwest, the Pacific Ocean to the west, and Panama to the northwest.
On 22 January 2022, Ana Guerra performed at the legendary Teatro de la Maestranza in Seville, as part of her tour Lo que nunca te dije. [38] On 15 December 2023, the new EP titled "Érase una vez" was published, a collection of four songs accompanied by a personalized folder signed by the singer. This is an album dedicated to her fans.
Operation Condor (Portuguese: Operação Condor; Spanish: Operación Cóndor) was a campaign of political repression by the right-wing dictatorships of the Southern Cone of South America, [7] [8] involving intelligence operations, coups, and assassinations of left-wing sympathizers in South America which formally existed from 1975 to 1983.