Question

Which of these numbers have exactly two factors 7 8 9 10

A B C D

Answer 1

Answer:

A. 7

Step-by-step explanation:

• If a number has exactly two factors, 1 and itself, the number is a prime number.
• The only prime number below is 7

7= 1*7

8= 1*8= 2*4

9= 1*9= 3*3

10= 1*10= 2*5