181 is a prime number from 101-200. 181 has 2 factors, 1 and 181. It is the 42nd prime number, and the seventeenth prime number from 101-200.
As an Exponent of Mersenne Number
Relationship with other odd numbers
The numbers before
- The previous prime number is 179.
- There are no odd numbers between 179 and 181. As a result, they are twin primes.
- The previous prime number before 179 is 173.
The numbers after
- The next prime number is 191.
- Notably, 187 is not a prime number. It can be factored as 11 x 17.
- 193 is the next prime number after 191.