Question

qual o minimo multiplo comum de 20, 45 e 21

Answer 1

20-45-21]2
10-45-21]2
  5-45-21]3
  5-15- 7]3
  5=5  -7]5
   1-1 -7 ]7
    1-1-1       2² * 3³ * 5 * 7 =  4* 9 * 5 * 7 =1260