The twin prime of 191 is 193.
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YES 191 is a prime number.
191 is a prime number. It is only evenly divisible by itself and one.
191/1000. Since 191 is prime, and 1000 is not a multiple of 191, this is in lowest terms.
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.
The prime numbers between 190 and 200 are 191 and 193.