If 2^5, 4^3, and 13^2 are all factors of the product of 936 and w where w is a positive integer, what is the smallest possible value of w? Choose the correct choice from the following choices.
A) 26
B) 39
C) 42
D) 208
E) 156

Rationale: "here 156 has three two ' s two three ' s and one 13 rest of them must be in w so w = 13 * 4 * 4 = 208 smash d"
Answer: D