bonjour
E = 5*5*7*7*7*5*7 = 5 ³ x 7 ⁴
F = 5*7*7*5*7*7 sur 5*5*7*5*7 = 5 ² x 7 ⁴ / 5 ³ x 7 ²
G = 14*25*70*49*28*2
G = (2 x 7) x (5 ²) x (7 x 5 x 2) x 7² x (2 x 7 x 2 ) x 2
G = 2 ⁵ x 5 ³ x 7 ⁵
H = 10*35*8*125*28*2 sur 7*160*175*56
H = ( 2 x 5 ) x ( 5 x 7 ) x ( 2 ³) x 5 ³ x ( 7 x 2 x 2 ) x 2 sur 7 x ( 5 x 2⁵) x ( 5 ² x 7
x ( 2³ x 7)
H = 2 ⁷ x 5 ⁵ x 7 ² : 2 ⁸ x 5 ³ x 7 ³