find the least square number which is exactly divisible by each one of number 12,15,18.

Dear student,LCM(12,15,18):12=2×2×315=3×518=2×3×3LCM=2×2×3×3×5=180Now let make it a perfect square:180=2×2×3×3×5For making above no. a perfect square then we need to multiply 5So, required number=180×5=900thus, 900 is least square number which is exactly divisible by 12,15,18Regards

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