Question 40
Show that every non-empty subset of the set
$$
Y = \{113! + 2, 113! + 3, \dots, 113! + 15\}
$$
has the sum of its elements a composite number.
$$
Y = \{113! + 2, 113! + 3, \dots, 113! + 15\}
$$
has the sum of its elements a composite number.