21 = 7 * 318 = 2 * 3 * 3 = 2 * 3²НОК (21 и 18) = 7 * 2 * 3² = 14 * 9 = 12624 = 3 * 2³32 = 7 * 2²НОК (24 и 32) = 3 * 7 * 2³ = 21 * 8 = 16816 = 2⁴20 = 5 * 2²НОК (16 и 20) = 2⁴ * 5 = 16 * 5 = 8020 = 5 * 2²35 = 5 * 7НОК (20 и 35) = 5 * 7 * 2² = 35 * 4 = 14075 = 3 * 5²90 = 2 * 3 * 3 * 5 = 2 * 5 * 3²НОК (75 и 90) = 5² * 3² * 2 = 25 * 9 * 2 = 4506 = 2 * 313 = 13 * 1НОК (6 и 13) = 6 * 13 = 7814 = 2 * 718 = 2 * 2 * 3 = 2² * 3НОК (14 и 18) = 2² * 7 * 3 = 4 * 21 = 8428 = 7 * 2²42 = 7 * 2 * 3НОК (28 и 42) = 7 * 2² * 3 = 21 * 4 = 8421 = 7 * 333 = 3 * 11НОК (21 и 33) = 7 * 3 * 11 = 7 * 33 = 23112 = 2 * 2 * 3 = 2² * 330 = 2 * 3 * 575 = 3 * 5²НОК (12, 30 и 75) = 2² * 3 * 5² = 4 * 3 * 25 = 12 * 25 = 30015 = 3 * 542 = 7 * 2 * 3105 = 3 * 5 * 7НОК (15, 42 и 105) = 3 * 5 * 2 * 7 = 21021 = 3 * 728 = 2² * 735 = 5 * 7НОК (21,28 и 42) = 7 * 3 * 5 * 2² = 420