pi(1000000) = 78498 (expected 78498) True 0.0s
pi(10000000) = 664579 (expected 664579) True 0.0s
pi(100000000) = 5761455 (expected 5761455) True 0.0s
pi(1000000000) = 50847534 (expected 50847534) True 0.1s
pi(k) = 12868673 0.0s
primes in (k, 234360017]: [234360017]
pi(5274442853) = 247228673 0.2s
is_prime(last) = True  pi(last) - pi(k) = 234360000  (should be k = 234360000 )
diameter = 5040082836