fill in the blank space.
1, 9, 25, 49, 81, ?
Select the correct option
A) 100
B) 121
C) 144
D) 169
E) 172
The series consists of squares of consecutive prime numbers.   Answer : 121.
<result>B</result>
fill in the blank space.
1, 9, 25, 49, 81, ?