Question: what is the highest common factor of 19 and 48?
Answer: The prime factorization of 19 is: 19. The prime factorization of 48 is: 2 x 2 x 2 x 2 x 3. The prime factors and multiplicities 19 and 48 have in common are: 1. 1 is the gcf of 19 and 48. gcf(19,48) = 1.