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Divisibility
medium
0:00.0
If
n
≡
3
(
m
o
d
4
)
n \equiv 3 \pmod{4}
n
≡
3
(
mod
4
)
, what is
n
2
(
m
o
d
4
)
n^2 \pmod{4}
n
2
(
mod
4
)
?
A
2
2
2
B
0
0
0
C
3
3
3
D
1
1
1
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