Which number is a factor of 20?	Choose one
A) 3	B) 4	C) 7	D) 18	E) 9
A whole number that divides exactly into another whole number is called a factor   20/5= 
<gadget id="calculator">20/5</gadget>
<output>4</output>
4   answer 4
<result>B</result>
Which number is a factor of 20?