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Primes
hard
0:00.0
How many primes
p
p
p
exist such that
p
+
2
p+2
p
+
2
and
p
+
4
p+4
p
+
4
are also prime?
A
0
0
0
B
1
1
1
C
2
2
2
D
3
3
3
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