Match the given factor with its perfect square:
Factor:
144
64
81
4
100
9
121
25
36
49
16
1
Square:
1
2
3
4
5
6
7
8
9
10
11
12
Factor:
144
64
81
4
100
9
121
25
36
49
16
1
Square:
1
2
3
4
5
6
7
8
9
10
11
12