Instructions

What should come in place of the question mark ? in the following number series ?

Question 61

2, 14, 84, 420, 1680, 5040, ??

Solution

Each number in the series is a multiple of the previous number.
For example, 14 = 2*7
84 = 14*6
420 = 84*5
1680 = 420*4
5040 = 1680*3

Therefore, the number which comes next is 5040*2 = 10080

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