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Text reproduced from Wikipedia says the following......
"It has the longest publicly used runway in the world, at 5,500 m (18,045 ft)"
Rwy 14 (145 deg. corrected)
Rwy 32 (325 Deg. corrected)
Rwy Length 13,794 ft.
At an elevation of 14,219 feet AMSL, this is the world's highest airport with scheduled airline service, nearly 1,000 feet higher than El Alto Airport (SLLP) in Bolivia.