Are there 5 consecutive primes?

# Function 1 - isPrime
def isPrime(n):
    if n != int(n) or  n <= 1:
        print("Error while using function '" + isPrime.__name__ + "'")
        return -1000
    if n == 1 or n == 2:
        return True
    for i in range(2, int(n/2)):
        if n % i == 0:
            return False
    return True

# Function 2 - Create pentada
def createPentada(n):
    if n % 10 != 0:
        print("Error while using function '" + isPrime.__name__ + "'")
        return -1000
    return [n+1, n+3, n+5, n+7, n+9]

# Function 3 - Solve
def solve(LIMIT):
    for n in range(0, LIMIT, 10):
        pentada = createPentada(n)
        hits = 0
        for x in pentada:
            flag2 = isPrime(x)
            if flag2 == True:
                hits += 1
            else:
                print("Number that breaks the sequence = " + str(x))
                break
        if hits == 5:
            return pentada


# MAIN FUNCTION
LIMIT = 10**5
print(solve(LIMIT))