3, 5
5, 7
11, 13
17, 19
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A twin prime is a prime number that differs from another prime number by two.ex. (5, 7)The numbers two away from 23 are 21 and 25 which are both composite numbers.So in short, no 23 is not a twin prime.
There are 25 prime numbers between 1 and 100.
There are 6 prime numbers between 25 and 50. 29 31 37 39 41 47
The prime numbers between 0 and 25 are: 2 3 5 7 11 13 17 19 23.
Prime numbers between 10 and 20 are 11, 13 17 and 19. Those between 20 and 25 are 23.