Question

calcule m.m.c (40, 42)

Answer 1

(40, 42) / 2
(20, 21) / 2
(10, 21) / 7
(10, 3) / 5
(2, 3) / 2
(1, 3) / 3
(1, 1)

2×2×7×5×2×3 = 840