vetor = [2,3,4,5,11,15,20]
divisions_list = []

def isprime():
    divisions = 0
    i = 0
    for i in range(1, vetor[i+1]):
        if i % i == 0:
            divisions = divisions + 1
            divisions_list.append(divisions)
        if divisions == 2:
            print('The number {} is prime'.format(vetor[i]))
        else:
            print('The number {} is not prime'.format(vetor[i]))

print(isprime())

from math import sqrt

def is_prime(n):
    divisions = 0
    for i in range(2, int(sqrt(n))):
        if num % i == 0:
            return False
    return True

vector= [2,3,4,5,11,15,20]

for n in vector:
    if is_prime(n):
        print('prime')
    else:
        print('not a prime')

vetor = [2,3,4,5,11,15,20]
divisions_list = []

def isprime():
    for num in vetor:
        divisions = 0
        for i in range(1, num+1):
            if num % i == 0:
                divisions = divisions + 1
                divisions_list.append(divisions)
        if divisions == 2:
            print('The number {} is prime'.format(num))
        else:
            print('The number {} is not prime'.format(num))

isprime()