Solution:
Concept- The answer to this problem can be found by taking the LCM of the three supplied numbers, dividing the largest 6-digit number by the result, and, if there is any left, subtracting the remainder from the largest 6-digit number.Therefore, we must identify the largest six-digit integer that is precisely divisible by 18, 24, and 36.
Therefore, we shall use the 18, 24, and 36 LCM (Lowest Common Factor) .
LCM = 
As far as six-digit numbers go, the greatest one is 999999.By multiplying 999999 by 72, we obtain:
The quotient was 13888, and the remainder was 63.the largest 6-digit number that can be divided by 18, 24, and 36 is
Hence, the correct answer is option 1.
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