A B
1.(1,3,5) (1,3,5)
2.(1,3,5,2) (1,3,5)
3.(1,3,5,4) (1,3,5)
4.(1,3,5,6) (1,3,5)
5.(1,3,5,2,4) (1,3,5)
6.(1,3,5,2,6) (1,3,5)
7.(1,3,5,4,6) (1,3,5)
8.(1,3,5,2,4,6) (1,3,5)
9.(1,3,5) (1,3,5,2)
10.(1,3,5) (1,3,5,4)
11.(1,3,5) (1,3,5,6)
12.(1,3,5) (1,3,5,2,4)
13.(1,3,5) (1,3,5,2,6)
14.(1,3,5) (1,3,5,4,6)
15.(1,3,5) (1,3,5,2,4,6)
16.(1,3,5,2) (1,3,5,4)
17.(1,3,5,2) (1,3,5,6)
18.(1,3,5,4) (1,3,5,2)
19.(1,3,5,4) (1,3,5,6)
20.(1,3,5,6) (1,3,5,2)
21.(1,3,5,6) (1,3,5,4)
22.(1,3,5,2) (1,3,5,4,6)
23.(1,3,5,4,6) (1,3,5,2)
24.(1,3,5,4) (1,3,5,2,6)
25.(1,3,5,2,6) (1,3,5,4)
26.(1,3,5,6) (1,3,5,2,4)
27.(1,3,5,2,4) (1,3,5,6)
由于交集是1,3,5,所以A,B集合中都必有1,3,5
A,B都只有3个元素,1种
A有4个元素,B有3个元素,3种
A有5个元素,B有3个元素,3种
A有6个元素,B有3个元素,1种
A有3个元素,B有4个元素,3种
A有3个元素,B有5个元素,3种
A有3个元素,B有6个元素,1种
A有4个元素,B有4个元素,6种
A有4个元素,B有5个元素,3种
A有5个元素,B有4个元素,3种
所以一共27组