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Primes
hard
0:00.0
Which of these primes
p
p
p
satisfy
p
≡
3
(
m
o
d
4
)
p \equiv 3 \pmod{4}
p
≡
3
(
mod
4
)
?
A
3
3
3
B
7
7
7
C
11
11
11
D
13
13
13
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