Question: what is the greatest common factor of 49 and 50?
Answer: The prime factorization of 49 is: 7 x 7.
The prime factorization of 50 is: 2 x 5 x 5.
The prime factors and multiplicities 49 and 50 have in common are: 1.
1 is the gcf of 49 and 50.
gcf(49,50) = 1.