a. A=18 si B= 1260
1 260 = 2^2 * 3^2 * 5 * 7
18 = 2 * 3^2
A*B = 2^3*3^4*5*7
b. A=1750 si B=6750
1 750 = 2 * 5^3 * 7
6 750 = 2 * 3^3 * 5^3
A*B = 2^2*3^3*5^6*7
c. A=3240 si B= 22100
3 240 = 2^3 * 3^4 * 5
22 100 = 2^2 * 5^2 * 13 * 17
A*B = 2^5*3^4*5^3*13*17
d. A=24200 si B=25860
24 200 = 2^3 * 5^2 * 112
25 860 = 2^2 * 3 * 5 * 431
A*B = 2^5*3*5^3*112*431