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Divisibility
medium
0:00.0
Which of these satisfy
n
2
≡
1
(
m
o
d
8
)
n^2 \equiv 1 \pmod{8}
n
2
≡
1
(
mod
8
)
?
A
1
1
1
B
3
3
3
C
4
4
4
D
5
5
5
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