Question

find the greatest number of four digits exactly divisible by 15, 21, 27.​

Answer 1

9720 is the answer ...

.....

Answer 2

Answer:

9720

Step-by-step explanation:

LCM of (12, 15, 18, 27)

⇒ 4 × 3 × 5 × 3 × 3 = 540

largest 4-digits number = 9999 on dividing by 540 to number = 

9999÷540

remainder = 279

Required number = 9999 - 279 = 9720