189 = 3 x 3 x 3 x 7; 105 = 3 x 5 x 7. Common factors are 3 and 7 so LCM = product /HCF ie 189 x 105/21 = 945
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105 = 5*21 525 = 5*105 = 52*21 945 = 5*189 = 5*9*21 LCM = 25*189 = 4725
The LCM is: 189
The LCM is 189.
The LCM is 189.
The GCF of 105 and 189 is 21.