What is the lowest positive integer that is divisible by 1 through 3, inclusive?  Choose the most appropriate option.
A) 12
B) 6
C) 8
D) 18
E) 33
The integer should be divisible by: 1, 2, and 3. The least common multiple of these integers is LCM=1*2*3= 
<gadget id="calculator">1*2*3</gadget>
<output>6</output>
6   Answer: 6
<result>B</result>
What is the lowest positive integer that is divisible by 1 through 3, inclusive?