Question

What comes next ?

Answer 1

The next Number is 5040.

2 = (1+1)*1/1
6 = (1+2)*2/1
24 = (2+6)*6/2
120 = (24+6)*24/6
720 = (120+24)*120/24
5040 = (120+720)*720/120

Answer 2

Ans: 720 * 7 =  5040

Solution:
i = 1

next_number = (number * ++i)

(1 * 2)        =  2
(2 * 3)        =  6
(6 * 4)        =  24
(24 * 5)       = 120
(120 * 6)      = 720
(720 * 7)      = 5040

Answer 3

Solution:
i = 1
next_number = (number * ++i)
(1 * 2) = 2
(2 * 3) = 6
(6 * 4) = 24
(24 * 5) = 120
(120 * 6) = 720
(720 * 7) = 5040