Answer:

5. 25 - ?

6. 81 - ?

7. 64 - ?

8. 36 - ?

Step-by-step:

5. the factors of 25 is 1,5,25 if negative -1,-5,-25

6. the factors of 81 is 1,3,9,27 and 81 hence a composite number

7. the factors of 64 is 1,2,4,8,16,31,64 if negative -1,-2,-4,-8,-16,-31,-64

8. the factors of 36 is 1,2,3,4,6,9,12,18, and 36

Explanation:

#BrainlyEveryday

#Carry_On_Learning