Read this article and answer this question The Sudetes are a geologically diverse mountain range that stretches for 280 kilometres from the Lusatian Highlands in the west and to the Moravian Gate in the east. They are topographically divided into Western, Central and Eastern Sudetes. The Lower Silesian section of the Sudetes comprises the Jizera Mountains , where the tripoint with Upper Lusatia and Bohemia is located near the Smrk summit, along with the adjacent Karkonosze Krkonose ; Rudawy Janowickie ; Owl Mountains ; Stone Mountains ; Wabrzych Mountains and the Kaczawskie Mountains with Ostrzyca, 501m or 1,644ft - they surround the Jelenia Gora valley, 420-450m or 1,380-1,480ft; Sleza Massif , massive of Orlicke hory, Kralicky Sneznik south of historical Kladsko Polish: Klodzsko), Rychlebske hory and Jeseniky .
How many divisions are there of the Sudetes?
3