TheOG 13thed page 193 #77 says
If n = 90! + 87, then n is divisible by which of the
following?
I. 15
II. 17
III. 19  Choose the correct choice from the following options.
A) None	B) I only	C) II only	D) I and II	E) II and III
The example you have taken   n = 4! + 4 = 4(3!+1)   The equation gets further simplified to deviate the expected results   Try some other examples   7! + 4   9! + 5   4! + 3   Answer:I only
<result>B</result>
TheOG 13thed page 193 #77 says
If n = 90! + 87, then n is divisible by which of the
following?
I. 15
II. 17
III. 19