What is the correct answer?
4
A. 39800
B. 38700
C. 36700
D. 37800
72 = 23 x 32, 108 = 33 x 22, 2100 = 22 x 52 x 3 x 7.
L.C.M. = 23 x 33 x 52 x 7 = 37800.