Find the lowest common multiple of 24, 30 and 40. Options:
A) 360 B) 420 C) 120 D) 320 E) 280
LCM=2*2*2*3*5= 
<gadget id="calculator">2*2*2*3*5</gadget>
<output>120</output>
120.   Answer is 120
<result>C</result>
Find the lowest common multiple of 24, 30 and 40.