Page 90 - Numbertheory
P. 90
@ @Hßìÿa@ö§aI@†a‡Èÿa@óî‹Åä@@
20 ( ) 18 ( ) 16 ( ) 14 ( )
[Maclaurin 2006] ( )
35
35 ( ) 30 ( ) 25 ( ) 20 ( )
100 [MAӨ 2009] ( )
)
.11 7 )
)
2848 ( ) 2664 ( ) 2464 ( ) 2448 ( )
317 + 713 [Aust.MC 1995] (
7() 3( ) 1( ) 0 ()
n x = (n +1) (n + 2) (n + 3) [Aust. MC 1978] (
x.
6() 5( ) 3( ) 2 ()
[British SMC 2002] (
6 123456789 × 987654321
4() 3( ) 2( ) 1 ()
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