20 = 2 * 2 * 5,
48 = 2 * 2 * 2 * 2 * 3,
НОК (20,48) = 2 * 2 * 5 * 2 * 2 * 3 = 240,
28 = 2 * 2 * 7,
40 = 2 * 2 * 2 * 5,
НОК (28,40) = 2 * 2 * 7 * 2 * 5 = 280,
НОК (20,48) < НОК (28,40)
20 = 2 * 2 * 5,
48 = 2 * 2 * 2 * 2 * 3,
НОК (20,48) = 2 * 2 * 5 * 2 * 2 * 3 = 240,
28 = 2 * 2 * 7,
40 = 2 * 2 * 2 * 5,
НОК (28,40) = 2 * 2 * 7 * 2 * 5 = 280,
НОК (20,48) < НОК (28,40)