It could be 97 which is a prime number.
11
It is 43
70
31
Prime number greater than 25 but less than 30 is 29.
47 is the prime number greater than 43 and less than 52.
37
It could be 97 which is a prime number.
Prime number which is greater than 30 and less than 35 is 31.
31
53
53
89
11
It is 43
70