find the greatest 4 digit number which is exactly divisible by each of 8 12 and 20
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Firstly we will find out the LCM of 8, 12 & 20 8= 2×2× 2 12= 2×2×3 20=2×2×5. Lcm= 2××2×2×3×5= 120. Greatest 4 digit number is 9999. Then divide this number by LCM of 8, 12 & 20 ...
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firstly we take LCM then, greater no and then we divide and finally we get answer is=9960
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