The L.C.M of 22, 54, 108, 135 and 198 is
22 = 2 x 11
54 = 2×33
108 = 22×33
135 = 33×5
198 = 2×32×11
∴ L.C.M = 22×33×5×11=5940
Find the Greatest Common Factor of 280 and 144.
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