which is the greatest number of 4 digits, which is divisible by each one of the numbers 12,18, 21 and 28?
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LCM = 504
Greatest 4digit number = 9999
9999 ÷ 504 = 19 as quotient and reminder also comes
504 x 19 = 9576 is the greatest 4 digit number
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•The greatest number of 4 digits, which is divisible by each one of the numbers 12,18, 21 and 28 is 9828
•The greatest 4 digits number is 9999
The LCM of 12, 18, 21, 28 is 252
•On dividing 9999 by 252 the remainder comes out to 171
•Required number = 9999 - 171
= 9828
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