find the smallest number of four digits exactly divisible by 4 , 5,7 and 8 .
"smallest number of four digits is 1000 . required number must be divisible by l . c . m . of 4,5 , 7,8 i . e 280 , on dividing 1000 by 280 , we get 120 as remainder . therefore , required number = 1000 + ( 280 â € “ 120 ) = 1160 . answer is b ."
add(subtract(multiply(const_10, multiply(const_100, const_100)), const_100), 5,7)