Question

which of the following has exactly 3 factors
a. 12
b. 36
c. 121
d. 100​

Answer 1

Answer:

Factors of 12 = 1, 2, 3, 4, 6 , 12

Factors of 36 = 1 , 2 , 3 , 4 , 6 , 9 , 12 , 18, 36

Factors of 121 = 1 , 11 , 121

Factors of 100 = 1 , 2 , 4 , 5 , 10 , 20 , 25 , 50 , 100

So , only 121 has three factors

So , the answer is 121