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Dulles District
The 4A Dulles District is a high school conference in the state of Virginia that includes schools from Northern Virginia, with all of its full-time members from Loudoun County. 4A is the third largest enrollment class of the Virginia High School League and is typically very competitive in Virginia high school sports. The Dulles District schools compete in the 4A West Region with the schools from Conference 21A, Conference 22, Conference 23, and Conference 24. History and Facts about the District The Dulles District was created in 2001 from all six Loudoun County high schools that were in the AA Northwestern District, which were Broad Run High School, Loudoun County High School, Loudoun Valley High School, Park View High School, Potomac Falls High School, and Stone Bridge High School. The Dulles District's name is derived from the district's proximity to Washington Dulles International Airport, which is located in eastern Loudoun County. Membership Changes Loudoun County's grow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
400px-Dulles District Map
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically three. The sum of the first four prime numbers two + three + five + seven is the only sum of four consecutive prime numbers that yields an odd prime number, seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, three and five, which are the first two Fermat primes, like seventeen, which is the third. On the other hand, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
