Question

find the smallest number of three digits that can be exactly divided by 75,45and 60

Answer 1

LCM of 75, 45 & 60 is 900. Greatest 3 digit number is 999. Now dividing 999by 900 we get 99 as remainder. So the 3 digit number exactly divisible by by 75,45 & 60 = 999 -99 =900.

Answer 2

the LCM of 75 ,45 and 60 is the smallest 3 digit number that can divided by them that is 900