1.

Find the least square number, which is exactly divisible by each one of the numbers12, 15, 18.​

Answer»

ong>Answer:

L.C.M. of 10 12 15 18 = 180. Now 180 = 2 * 2 * 3 * 3 *5 = 22 * 32 * 5. To make it a PERFECT square it must be multiplied by 5. REQUIRED number = 22 * 32 * 52 = 900.



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