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911 is the prime phone number in the United States to dial in case of emergency. The Porsche 911 is an awesome, highspeed sports car. [Job] On the first anniversary of the 9/11 terrorist attacks in New York City, the numbers that popped up for the New York Lottery were 911. [MSN] The Madrid Attack came 911 days after 9/11. The 9/11 terrorist attacks in New York City occurred on the 254th day of the year. 1609 is the 254th prime number. Note that explorer Henry Hudson first came across the island of Manhattan on 9/11/1609. [Lewis] Consider a Fibonaccilike sequence starting with 9, 11. The 11th term will be 911. The smallest prime obtained by concatenating the product and the sum of its own digits. [Silva] Consider the integers formed from the ordered permutations of all distinct positive digits up to 9. Term 11 (i.e., 123457968) is the first to fall between a twin prime pair. 911 is not only a centered decagonal prime, it is also the sum of three consecutive irregular primes (293, 307, and 311). [Green]
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