Пошаговое объяснение:
48 = 2 * 2 * 2 * 2 * 3,
72 = 2 * 2 * 2 * 3 * 3,
44 = 2 * 2 * 11,
НОК (48, 72, 44) = 2 * 2 * 2 * 2 * 3 * 3 * 11 = 1584,
102 = 2 * 3 * 17,
63 = 3 * 3 * 7,
21 = 3 * 7,
НОД (102, 63, 21) = 3,
11 = 1 * 11,
12 = 2 * 2 * 3,
13 = 1 * 13,
НОД (11, 12, 13) = 1