а) 80 = 24 × 5; 132 = 22 × 3 × 11. НОД(80, 132) = 22 = 4.
б) 360 = 23 × 32 × 5; 528 = 24 × 3 × 11. НОД(360, 528) = 23 × 3 = 8 × 3 = 24.
в) 1104 = 24 × 3 × 23; 1500 = 22 × 3 × 53. НОД(1104, 1500) = 22 × 3 = 4 × 3 = 12.
г) 7056 = 24 × 32 × 72; 8208 = 24 × 32 × 57. НОД(7056, 8208) = 24 × 32 = 16 × 9 = 144.