Question

Find the greatest 4 digit number which is exactly divisible by 20, 30, 32 and 36

Answer 1

greatest 4-digit no. divisible by 20,30,32,36 = 1440*6 =  8640,where 1440 is l.c.m of these number

Answer 2

8640 is the answer  is exactly divisible  by 20,30,32,36