Page 89 - Numbertheory

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(14362 + 20142 )2 ()

8( ) 6( ) 4( ) 2 ()
7( )
9( ) 7200 + 7201 + 7202 + 7203 ()

n 2( ) 1( ) 0 ()

2( ) 6n + 6n+1 + 6n +3 ()

60 8( ) 6( ) 4( )

128 ( ) n [AMC10 2001] ( )

107 +11 ( ) .7 n

99 ( ) 21 ( ) 14 ( ) 6 ()

248 −1 [MAӨ 2009] ( )

. 70

127 ( ) 126 ( ) 125 ( )

[British SMC 2001] ( )

.11

107 +1 ( ) 107 −1( ) 107 −11( )

[Aust.MC 2001] ( )

98 ( ) 97 ( ) 96( )

(A, B ) [MAӨ 2011] ( )

32 123A 782B

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