Hello, DINOCALC09!

(A) List all of the denominators between 2 and 25 that terminate.

Answer: 2, 4, 5, 8, 10, 16, 20, 25 . . . . Right!

(B) Explore the prime factors of these denominators.

What do they all have in common?

Did you evenlook atthe prime factors?

Notice anything?