28 = 2 x 2 x 7; 74 = 2 x 37.
LCM of two numbers = their product divided by their HCF.
In this case product = 2072 and HCF = 2 so LCM = 2072/2 ie 1036
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The least common multiple of 4, 5, and 8 is 40.
The least common multiple of the numbers 40 and 12 is 120.
Least Common Multiple (LCM) for 40 4 is 40.
The Least Common Multiple of 40 and 29 is 1,160.
The Least Common Multiple (LCM) for 40 19 is 760.