What is the unit’s digit of 7^6 Choose the correct option
A) 1
B) 3
C) 5
D) 7
E) 9
7^1=7   7^2=49   7^3=343   7^4=1(last digit)   7^5=7(last digit) and the cycle repeats after every 4 powers   Therefore, last digit of 7^6=9   Answer 9
<result>E</result>
What is the unit’s digit of 7^6