Question

calcule.mdc (12,28)mdc (26,39,65)

Answer 1

12,28: 2
6,14: 2
3,7: 3
1,7: 7
1,1       = 2.2 = 4

R.: mdc (12,28) = 4

26,39,65: 2
13,39,65: 3
13,13,65: 5
13,13,13: 13
1,1,1                  = 13

R.: mdc (26,39,65) = 13