Réponse :
Ex 1 :
108 = 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
247 = 1, 13, 19, 247
Ex 2 :
1.
108 = 2*3*3*3*2
432 = 2*2*2*2*3*3*3
588 = 2*2*3*7*7
2.
108/432 = (108/108)/(432/108)=1/4
588/108 = (588/12)/(108/12)=49/9
432/588 = (432/12)/(588/12)=36/49
Bonne nuit :) !
