In how many ways can 36 be written as the product $a \times b \times c \times d$, where $a, b, c$ and $d$ are positive integers such that $a \le b \le c \le d$?
+37153 Here are some ways.....can you think of any more?
1 1 1 36
1 1 2 18
1 1 3 12
1 1 4 9
1 1 6 6
1 2 2 9
1 2 3 6
2 2 3 3
