The last Boeing 747 jumbo jet leaves its Seattle-area factory today. Boeing has built more than 1,500 of the planes in the last 54 years. Bloomberg's Guy Johnson is at the factory with more. Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness/ Instagram: https://www.instagram.com/quicktake/?hl=en