Question

find the square no which is exactly divided by 8,12,15,20​

Answer 1

Answer:

first find the LCM of 8,12,15,20=120.Here is 2,3,5 are not in pairs,we need to in pairs for smallest square number.120×2×3×5=120×30=3600.Hence the number is 2×2×2×2×3×3×5×5=3600