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Canada National Olympiad
1973 Canada National Olympiad
3
Primes
Primes
Source:
January 11, 2007
Problem Statement
Prove that if
p
p
p
and
p
+
2
p+2
p
+
2
are prime integers greater than 3, then 6 is a factor of
p
+
1
p+1
p
+
1
.
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