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199 is a prime number from 101-200. 199 has 2 factors, 1 and 199. It is the 46th prime number, and the twenty-first and last prime number from 101-200. If you put the digits of 199 in any order, you still get a prime number (919, 991). In fact, you can even turn it upside down and still get a prime number (661).

## As an Exponent of Mersenne Number

2199 - 1 is divisible by 164,504,919,713, and is therefore not a prime number.

## Relationship with other odd numbers

### The numbers before

• The previous prime number is 197.
• There are no odd numbers between 197 and 199. As a result, they are twin primes.
• The previous prime number before 197 is 193.
• 193 and 199 are six numbers apart; therefore, they are sexy primes.

### The numbers after

• The next prime number is 211.
• 199 and 211 are twelve numbers apart. It is a large gap.
• In particular, 201 and 207 are divisible by 3, 203 by 7, and 209 by 11.
• 223 is the next prime number after 211. It is another equally huge gap.
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