Sagot :
Bonsoir,
1)
a. 42 = 14 x 3 = 2 x 7 x 3
b. 70 = 35 x 2 = 7 x 5 x 2
c. 180 = 9 x 20 = 3 x 3 x 2 x 2 x 5
d. 125 = 25 x 5 = 5 x 5 x 5
2)
a. 462 = 42 x 11 = 2 x 3 x 7 x 11
b. 1 000 = 10 x 100 = 2 x 5 x 2 x 2 x 5 x 5
c. 195 = 15 x 13 = 3 x 5 x 13
d. 136 = 17 x 8 = 17 x 2 x 2 x 2
Réponse :
bonsoir
Explications étape par étape
42=7x2x3
70=7x5x2
180=3x3x5x2x2
125=5x5x5
462=7x3x2x11
1000=5x2x5x2x5x2
195=5x3x13
136=17x2x2x2