There are an infinite number of them. A few are 7, 17, 37, 47, 67, and 97.
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7, 17, 37, 47.You can get this from any table of prime numbers.
Themselves because they are all prime numbers.
5 and 7 are both prime numbers.
Both are ending by 5, then they can be divided by 5, thus they are not prime numbers
7 is a prime number but 9 is a composite number