Question

qual o MDC de 39,65 e 91

Answer 1

39, 65, 91 | 3
13, 65, 91 | 5
13, 13, 91 | 7
13, 13, 13 | 13 -----> Fator Comum
  1,   1,   1 | 


$R: \boxed{mdc(39, 65, 91)=13}$