What is the remainder when (71)(73) is divided by 8? Choose the correct option
A) 1  B) 2  C) 4  D) 5  E) 7
(71)(73) = (72-1)(72+1) = 72^2 - 1 which is 1 less than a multiple of 8.   Then the remainder will be 7.   The answer is 7.
<result>E</result>
What is the remainder when (71)(73) is divided by 8?