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PEN Problems
PEN E Problems
21
E 21
E 21
Source:
May 25, 2007
Problem Statement
Prove that if
p
p
p
is a prime, then
p
p
ā
1
p^{p}-1
p
p
ā
1
has a prime factor that is congruent to
1
1
1
modulo
p
p
p
.
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