Question

find the least square no.which is exactly divisible by each nos.6,9,15,20

Answer 1

hey friend,
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First of all we need to find the LCM of 6,9,15,20...

LCM of 6, 9, 15, 20
= 2×2×3×3×5
= 180

As, 5 is not in pair...

Therefore,
Smallest no. which is divisible by 6,9,15,20
= 180×5
= 900
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