In how many ways can 36 be written as the product a*b*c*d, where a, b, c, and d are positive integers such that 2 <= a <= b <= c <= d?
+539 36=2^2*3^2 or 2*2*3*3
Only one possibility because no number can equal one to make others larger
a=2 b=2 c=3 d=3
