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Drawing of Bà Rịa citadel in 1875. With the exception of the Côn Đảo islands, all of Bà Rịa–Vũng Tàu province was the Phước Tuy province after merging Bà Rịa Province and Vũng Tàu Town in the South Vietnam before 1975, including the Spratly Islands was a part of Phước Hải commune, Đất Đỏ district then (now is a townville of Long Đất district).
7 is the only number D for which the equation 2 n − D = x 2 has more than two solutions for n and x natural. In particular, the equation 2 n − 7 = x 2 is known as the Ramanujan–Nagell equation . 7 is one of seven numbers in the positive definite quadratic integer matrix representative of all odd numbers: {1, 3, 5, 7, 11, 15, 33}.
Bao is ethnically Mongol. [6] [7] Xishun Bao married saleswoman Xia Shujuan on March 24, 2007. [3] [8] [9] [10] The Mongolian ceremony took place on July 12, 2007. Bao's son was born at a hospital in Zunhua, Hebei province on October 2, 2008. [11] Bao appeared on the eleventh episode of The Amazing Race 16 as the "Pit Stop" greeter. The episode ...