The smallest number when increased by " 1 " is exactly divisible by 6,18,36,48, 60 is:
Select:  A) 724  B) 721  C) 720  D) 719  E) 700
LCM = 720   720 - 1= 
<gadget id="calculator">720 - 1</gadget>
<output>719</output>
719   ANSWER:719
<result>D</result>
The smallest number when increased by " 1 " is exactly divisible by 6,18,36,48, 60 is: