Scholarship Exam Preparation App
Class 6 - (Math )
Operations on numbers - H.C.F. and L.C.M
What is the LCM (Least Common Multiple) of 84 and 90?
a :
180
b :
360
c :
420
d :
840
Explanation :
84 = 2²×3×7, 90 = 2×3²×5 ⇒ LCM = 2²×3²×5×7 = 420