251 is a prime number from 201-300. 251 has 2 factors, 1 and 251. It is the 54th prime number, and the eighth prime number from 201-300.
Proofs[]
As an Exponent of Mersenne Number[]
2251 - 1 is divisible by numbers such as 503 and 54,217 and is therefore not a prime number.
Relationship with other odd numbers[]
The numbers before[]
- The previous prime number is 241.
- The previous prime number before 241 is 239.
The numbers after[]
- The next prime number is 257.
- In particular, 253 is divisible by 11 and 23, and 255 is divisible by 3, 5, and 17.
- 251 and 257 are six numbers apart; therefore, they are sexy primes.
- 263 is the next prime number after 257.
- 259 is not a prime, because it is divisible by 7.