Verified answer

69 = 23 * 3

НСК (23,69) = 69

50 = 10 * 5,

180 = 10 * 18,

НСК (50,180) = 10 * 5 * 18 = 900,

270 = 10 * 9 * 3,

360 = 10 * 9 * 4,

НСК (270,360) = 10 * 9 * 3 * 4 = 1080,

220 = 11 * 10 * 2

231 = 11 * 3 * 7

НСК (220,231) = 11 * 10 * 2 * 3 * 7 = 4620