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Pan African
2007 Pan African
2
For which n is this divisible by 2007?
For which n is this divisible by 2007?
Source: PAMO 2007 Q5
December 10, 2013
number theory unsolved
number theory
Problem Statement
For which positive integers
n
n
n
is
23
1
n
−
22
2
n
−
8
n
−
1
231^n-222^n-8 ^n -1
23
1
n
−
22
2
n
−
8
n
−
1
divisible by
2007
2007
2007
?
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