The LCM is 588.
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Least Common Multiple (LCM) for 28 49 84 is 588
The Least Common Multiple (LCM) for 28 49 and 84 is 588.The Greatest Common Factor (GCF) for 28 49 and 84 is 7.
For 84, 49, 28 the LCM is: 588
For 105, 84, 70, 49 the LCM is: 2,940
factoring 21=3*7 49=7*7 84=2*2*3*7 LCM=2*2*3*7*7=588