It is: 89
The sum of all prime numbers less than ten is 17. Pick a number 18 or higher.
9797 is the largest prime number less than 100.
67 will be the largest prime number less than 70.
There are 49 even numbers less than 100, but only the number 2 is an even prime number less than 100.
26
There is no "the" prime number in that range - there are 21 of them. If you want "the" prime number you will need to be more specific.
A beprisque number nnn is an integer which is either one more than a prime number and one less than a perfect square, or one more than a square and one less than a prime. The 5th such number is 10.
37
5
The sum of all prime numbers less than ten is 17. Pick a number 18 or higher.
89
87 is the only 2-digit number that is 6 greater and 13 less than a square, but it is not prime.
9797 is the largest prime number less than 100.
47 is the greatest prime number less than 48.
The lowest prime number that is less than 37 is 29.
The greatest prime number less than 200 is 199.
The largest prime number less than 50 is 47.