Д(210) = 2 × 3 × 5 × 7
Д(350) = 2 × 5 × 5 × 7
НОД(210, 350) = 2 × 5 × 7 = 70
НОК(210, 350) = 2 × 3 × 5 × 5 × 7 = 1050
Д(20) = 2 × 2 × 5
Д(70) = 2 × 5 × 7
Д(15) = 3 × 5
НОД(20, 70, 15) = 5
НОК(20, 70, 15) = 2 × 2 × 3 × 5 × 7 = 420
Д(210) = 2 × 3 × 5 × 7
Д(350) = 2 × 5 × 5 × 7
НОД(210, 350) = 2 × 5 × 7 = 70
НОК(210, 350) = 2 × 3 × 5 × 5 × 7 = 1050
Д(20) = 2 × 2 × 5
Д(70) = 2 × 5 × 7
Д(15) = 3 × 5
НОД(20, 70, 15) = 5
НОК(20, 70, 15) = 2 × 2 × 3 × 5 × 7 = 420