Math New Drill (Level 1) : Number sense and theory SNJ00-0702-L1 Integers with three divisors

Find integers with three divisors between 50 and 300.



Answer
121, 169, 289

Solution
Integer in which there are three divisors is the number by which the prime was squared.

11 × 11 = 121

13 × 13 = 169

17 × 17 = 289