Maximum Python Int Size Error 3

Question

I made a simple algorithm in Python 3 that proves that the "If a number n is prime, then 2 n -1 is prime" theorem is false.

However, I wanted him to do it with all the numbers up to number 50. But, it stops at number 31, because 2 31 -1 exceeds the maximum capacity of an int32 in python2 (2147483647), however, I am using Python 3, where the int has no limit, which could be causing this limitation?

My code below:

def eprimo(n):
    if(n == 1):
        return False
    numero = 2
    while numero<n:
        if(n%numero == 0):
            return False
        numero += 1   
    return True
    
    
i = 1
while i<=50:
    if(eprimo(i)):
        print(f'{i} é primo')
        pq = 2**i-1
        if(eprimo(pq) == False):
            print(f'O número {i} prova que o teorema é falso')
    i+=1
print("Acabou a execução")

Note: I have tested on websites that compile python 3, and the error persists