Question

find the LCM of the composite number lying between 21 to 26.

Answer 1

Composite numbers between 21 to 26 are 22,24,25
LCM(22,24,25)=
$22 = 2 \times 11 \\ 24 = 2 \times 2 \times 2 \times 3 \\ 25 = 5 \times 5 \\ = {2}^{3} \times {5}^{2} \times 11 \\ = 2200$


so LCM is 2200.