prime.py

def isPrime(num):
    flag = False

    if num == 1:
        return False
    elif num > 1:
        # check for factors
        for i in range(2, num):
            if (num % i) == 0:
                # if factor is found, set flag to True
                flag = True
                # break out of loop
                break

        # check if flag is True
        if flag:
            return False
        else:
            return True

def writeToFile(num):
    f = open("result.txt", "a")
    f.write(str(num)+"\n")
    f.close()

for i in range(1,250):
    prime_number = isPrime(i)
    if prime_number == True:
        print(i)
        writeToFile(i)