find the least square number which is exactly divisible by 10,12,15 and 18
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Answer:
LCM of 10,12,15,18= 180
180=2×2×3×3×5
Now as we see there is a pair of 2 and 3 but only one 5 is present there so to make it a perfect square we need to multiply 180 by 5
=>180×5
=>900
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