НОК 27,42. НОК 15,70 НОК 25 105
27 = 3³
42 = 2 * 3 * 7
НОК(27, 42) = 2 * 3³ * 7 = 378
15 = 3 * 5
70 = 2 * 5 * 7
НОК(15, 70) = 2 * 3 * 5 * 7 = 210
25 = 5²
105 = 3 * 5 * 7
НОК(25, 105) = 3 * 5² * 7 = 525