Question

mmc 12 15 60 urgenteee

Answer 1

12, 60 /2
6, 30 / 2 
3, 15 / 3
1, 5 / 5
mmc=2x2x3x5=60

Answer 2

12, 15, 60 I 2
  6, 15, 30 I 2
  3, 15, 15 I 3
   1,  5,   5 I 5
   1,  1,  1  

2² × 3 × 5