## python, 3 digits primes starting with 5


for a in range(500,600): ## between 500 and 599
    divisible = False
    for b in range(2,int(a/2)): ## divide number 2-number/2 to see if it is prime
        if (a%b == 0):
            divisible = True
            break
    if not divisible: ## if not divisible, must be prime
        print(a)