2. Multiply the least common multiple and the greatest common divisor in each case
and compare the product with the product of the numbers in each group. Write a
conclusion.
a. 34, 18 and 28
b. 1000 and 2000
c. 128,512 and 1024
d. 220,440, 600 and 900
e. 120, 135 and 278
f. 320, 450 and 620