Some numbers divided by prime factors are [[$ 2 \cdot 3 $]] and [[$ 3 \cdot 5 $]].

a) What are these numbers?

Answer: The numbers are and .

c) What is the greatest common factor of the numbers?

Answer: The greatest common factor of the numbers is .

d) What is the smallest common dividend of the numbers?

Answer: The smallest common dividend of the numbers is .