已知两位自然数“虎威”能被它的数字之积整除,求出“虎威”代表的两位数

2025-04-08 05:18:14
推荐回答(1个)
回答1:

令虎为X、威为Y,则:题意为:10X+Y=X×Y×K(K为整数)
①Y=1      
(K-10)X=1     
X=1,K=11 
所以虎威=11;
②Y=2    
(K-5)X=1      
X=1,K=6 
所以虎威=12;
③Y=3      
(3K-10)X=3   
无解;
④Y=4     
(4XK-10K)=2   
X=2,K=3    
所以虎威=24;
⑤Y=5      
(K-2)X=1     
X=1,K=3    
所以虎威=15;
⑥Y=6      
(3K-5)X=3    
X=3,K=2   
所以虎威=36
⑦Y=7,同上方法讨论无解;
⑧Y=8,同上方法讨论无解;
⑨Y=9,同上方法讨论无解;
综上所述,有三个满足题目的两位数,即11、12、15、24、36.

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