Python | simpy.nextprime() method

In the sympy module, we can get the next prime number for a given number n using sympy.nextprime() function. For n < 2^64 the answer is definitive; larger n values have a small probability of actually being pseudoprimes. 

Syntax:  sympy.nextprime()
Parameter:  n; number to be tested
Return:  next prime value

Code #1: 

Python3

# Python program to get next prime number
# using sympy.nextprime() method

# importing sympy module
from sympy import *

# calling nextprime function on different numbers
print(nextprime(7))
print(nextprime(13))
print(nextprime(2))

Output: 

11
17
3

Code #2: 

Python3

# Python program to check prime number
# using sympy.isprime() method

# importing sympy module
import sympy.ntheory as nt

# calling isprime function on different numbers
print(nt.nextprime(30))
print(nt.nextprime(13))
print(nt.nextprime(2))

Output: 

31
17
3