Discussion:
a problem
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托斯卡尼艷陽下
2009-06-12 15:19:50 UTC
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If ab can divide a00b, find all possible a,b in {1,2,...,9}.

(b=0 is trivial!)



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Victor
2009-06-13 02:23:31 UTC
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Post by 托斯卡尼艷陽下
If ab can divide a00b, find all possible a,b in {1,2,...,9}.
(b=0 is trivial!)
a=0或b=0都是trivial吧

(a,b) = (1,1) (1,5) (1,8) (2,2) (3,3) (4,4)
(4,5) (5,5) (6,6) (7,7) (8,8) (9,9)

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