GRE
The remainder when n is divided by 7
The remainder when 2n is divided by 7
The number of possible values the units digit of N
4
The units digit of $$888^{888}$$
The units digit of $$555^{555}$$
The remainder when $$8^{43}$$ is divided by 7
1
The remainder when $$3^{64}$$ is divided by 8
r
3
The remainder when $$2^{32}$$ is divided by 3
The remainder when $$7^{22}$$ is divided by 5
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