Question

find the least square number which is exactly divisible by 12,15,16,18. pls help

Answer 1

Lcm =2×2×2×2×3×3×5=720
there are pairs for 2 and 3 but not pair for 5
therefore, 5 must be multiplied to 720 to get the perfect square that is divisible by 12,15,16 and 18
720×5= 3600
ans is 3600