Nobody invented them - they are a characteristic of the set of numbers.
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Nobody invented them. Some prime numbers were found to be next-but-one to one another, and these were called twin primes.
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.
The last known twin prime number as of now is 2996863034895, which is part of the twin prime pair (2996863034895, 2996863034897). Twin prime numbers are prime numbers that differ by 2. However, it is worth noting that there may be larger twin prime numbers that have not been discovered yet.
a twin number is a prime number that have a number between it for ex:3,5 in the middle there is a four
59 and 61 are twin primes.