Question

Which of them is not a prime number? a) 23 b) 4 c) 11 d) 13

Answer 1

Answer:

4

hope it helps you ....mark as brainliest....

Answer 2

Answer:

Hope my answer helps you mate :-)

Step-by-step explanation:

4 is not a prime number as It has more than 2 factors, (other than 1 and number itself)

Which are 1,2,4

Mark as brainliest answer and follow me ⭐☑️