For such questions, you should really consult a table (list) of prime numbers. In this case, the following prime numbers fulfill the requirements:2, 3, 5, 11, 13
How about: 17
The number is 17.
43
Prime number greater than 25 but less than 30 is 29.
The new prime number, 2 multiplied by itself 57,885,161times, less one, has 17,425,170 digits.
Any prime number that has 0 as one of its digits, such as 101, 103, 107 or 109.
47 is the prime number greater than 43 and less than 52.
The prime number that is greater than 20 but less than 29 is 23.
37
23
17
23
Ummm... If I am correctly interpreting the question to be asking for a prime number less than 19, whose digits added together are greater than 7, then the answer is 17. There really aren't many options here (1, 2, 3, 5, 7, 11, 13, 17), only three of which even have multiple digits (11, 13, 17). So... 177. qed?