Question

If the successor of a prime number is predecessor of a composite number, then the number can be
11, 17,23, 29

Answer 1

Answer:

23

Step-by-step explanation:

the successor of 23 is 24 which is the predecessor of 25 which is a composite number

Answer 2

Answer:

23 is the number whose successor is a prime number and its successor is the predecessor of a composite number.

Explanation:

Successor of a prime number = predecessor of a composite number

we will take every number one by one

11 : successor of 11 = 11+1=12

predecessor of a composite number = 12 but it is a predecessor of 13 which is a prime number.

17 : successor of 17 = 17+1=18

predecessor of a composite number = 18 but it is a predecessor of 19 which is a prime number.

23: successor of 23 = 23+1=24

predecessor of a composite number = 24 and it is a predecessor of 25 which is a composite number.

29: successor of 29 = 29+1=30

predecessor of a composite number = 30 but it is a predecessor of 31 which is a prime number.

So 23 is the number whose successor is a prime number and its successor is the predecessor of a composite number.