The minimum common multiple and maximum common factor of 20 and 36, 19 and 13, 13 and 21, 30 and 60 are required

The minimum common multiple and maximum common factor of 20 and 36, 19 and 13, 13 and 21, 30 and 60 are required

The least common multiple of 20 and 36 is 180, and the greatest common factor is 4,
The least common multiple of 19 and 13 is 247, and the greatest common factor is 1,
The least common multiple of 13 and 21 is 273, and the greatest common factor is 1,
The least common multiple of 30 and 60 is 60, and the greatest common factor is 30,