What is the ages of the Children

A life insurance agent knocks on a door. A woman answers and he tries to sell her a policy. He asks her how many children she has and their ages. She replies: "I have three children, but I will not even listen to your sales pitch unless you guess their ages."

She gave him a clue: "The product of their ages is equal to 36."

The insurance salesman jots down some figures and replies, "I do not