What is the units digit of 33^2 * 17^3 * 49^3?
Choose the correct choice from the following answers.
A) 1  B) 3  C) 5  D) 7  E) 9
The units digit of 33^2 is the units digit of   3*3= 
<gadget id="calculator">  3*3</gadget>
<output>9</output>
9 which is 9.   The units digit of 17^3 is the units digit of   7*7*7= 
<gadget id="calculator">  7*7*7</gadget>
<output>343</output>
343 which is 3.   The units digit of 49^3 is the units digit of   9*9*9= 
<gadget id="calculator">  9*9*9</gadget>
<output>729</output>
729 which is 9.   The units digit of  9*3*9= 
<gadget id="calculator"> 9*3*9</gadget>
<output>243</output>
243 is 3.   The answer is 3.
<result>B</result>
What is the units digit of 33^2 * 17^3 * 49^3?