Page 110 - Numbertheory

@ @@Hßìÿaö§aI@†a‡Èÿa@óî‹Åä@

. 18 4 q p [AMC10A 2000] ( )

pq − ( p + q )

231 ( ) 119 ( ) 60 ( ) 21 ( )
()
9n

n2

48 ( ) 42 ( ) 25 ( ) 17 ( )

32639 [MAӨ 2009] ( )

.

384 ( ) 381 ( ) 378 ( ) 356 ( )

5N 2000 [Aust.MC 2000] ( )

16 ( ) N 8( ) 6 ()

n 13 ( ) an [MAӨ 2011] ( )
)
29 ( ) 27 ( ) a1 + a2 + ... + a10 )

mn = 40 m +n 25 ( ) 23 ( )

13 ( ) 12 ( ) nm (

3k 12! 2m + 3n = 31

5( ) 4( ) 8( ) 5 ()

k(

3( ) 2 ()

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