9000076010

SubArea: 
Elementary arithmetics
Level: 
B
Project ID: 
9000076010
Accepted: 
1
Clonable: 
0
Easy: 
1
In the following list identify a set of the numbers where any number has exactly three divisors (including the number 1 and itself).
4, 25, 289
1, 2, 3
25, 36, 49
1, 17, 289
25, 36, 121