Question

find the greatest number of 4 digits which exactly divisible by each of 12 18 40 and 45​

Answer 1

Answer:

9720

Step-by-step explanation:

Clearly, 9720 is the largest four digit number divisible by 12, 18, 40 and 45 as 9720 will be a multiple of these numbers as it is a multiple of one of their common multiples.

Answer 2

$\huge{\textbf{{{\color{navy}{～☆}}{\pink{Answer}}{\red{✿}}}}}$The greatest 4 digit number is 9999. Now, we have to subtract the remainder, which is 279, from 9999. So, 9720 is the required greatest 4 digit number which is exactly divisible by 12, 18, 40 and 45.