Question

Minimum number that should be added to 28550 so that the new number is divisible by 3, 5, 7 and 8

Answer 1

LCM of 3, 5, 7 and 8 = 840

28550 ÷ 840 = 33

remainder = 803

Hence the least number which should be added = 840 - 803 = 37

Answer 2

first step is to find the lcm of

3,5,7,8 it is  =840

now the number given in the question is =28550

hence lcm is 840 that means it is divisible by 28550

by dividing =28550/840

                  = 33

remainder = 803

so finally the least number which should be added

= 840- 803

= 37