Answer:
19
Step-by-step explanation:
19*2=38 and 19 is a prime number
Answer: 19
Step-by-step explanation: The number 38 is a composite number because 38 can be divided by 1, by itself and at least by 2 and 19. So, it is possible to draw its prime tree. The prime factorization of 38 = 2. 19.
