Question

find the gratest 4 digit number which is exactly divisible by each of 8 , 12 and 20​

Answer 1

Step-by-step explanation:

First we find the LCM of 8,12 and 20.(Refer Fig.1)

∴ LCM of given numbers =2×2××3×5=120

According to given condition , we need a greatest number of 4 -digit which is exactly divisible by 120.

Greatest number of 4-digit =9999

We divide 9999 by 120 and find the remainder (Refer Fig.2)

∴ The required number =9999−39=9960

Answer 2

Answer:

9960

Step-by-step explanation:

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