def test_input_5(): assert lesson3.largest_prime_factor(5) == 5
def test_input_3(): assert lesson3.largest_prime_factor(3) == 3
def test_input_600851475143(): assert lesson3.largest_prime_factor(600851475143) == 6857
def test_input_13195(): assert lesson3.largest_prime_factor(13195) == 29
def test_input_2(): assert lesson3.largest_prime_factor(2) == 2
def test_input_7(): assert lesson3.largest_prime_factor(7) == 7