What will come in the place of question mark (?) in the following number series?
60, 90, 144, 252, 504, 1260, ?1
6040
2
5040
3
3040
4
4040
5
7040
What will come in the place of question mark (?) in the following number series?
60, 90, 144, 252, 504, 1260, ?