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What comes next in this series? 0, 1, 2, 720!, ?

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What comes next in this series?

0, 1, 2, 720!, ?

In math, the exclamation mark is a factorial, which is the product of every whole number from 1 to n.
For example, five factorial is written 5! = 1x2x3x4x5 = 120. By definition 0! = 1.
So 720! = 1x2x3x4x...718x719x720, which is a very large number.

posted Dec 4 by Ujjwal Mehra

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1 Answer

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4!!!!


The series can be written as:
0, 1!, 2!!, 3!!! (3!!!=6!!=720!)
the next term seems to be 4!!!!

answer Dec 4 by Hanifa Mammadov
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