Question 1112268
4 to the 1=4
4 to the 2=16
4 to the 3=64
4 to the 4=256
4 to the 5=1024
4 to the 6=4096
4 to an even number has a units digit of 6
4 to an odd number has a units digit of 4

4^5713 ends in 4