Elephant Sale

An elephant seller captured  N elephants from 3 mountains for 9 kings. Same number of  elephants are captured from each mountain. Water for elephants are given using 5 tubs. Each tub accommodates same number of elephants.  Elephants are taken to the kings in 7 different ways. Each way accommodates same number of elephants. Elephants are sold to 9 kings. Each king will have same number of elephants.

How many numbers of elephant did seller captured.