168, 28
84/56 = 1 remainder 28
56/28 = 2 remainder 0
The greatest common factor is 28.
56 = 28*2
84 = 28*3
The least common multiple is 2*28*3 = 168.
56/28 = 2 remainder 0
The greatest common factor is 28.
56 = 28*2
84 = 28*3
The least common multiple is 2*28*3 = 168.