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What comes next in this series - 1, 2, 3, 5, 7, ?, ?

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What comes next in this series - 1, 2, 3, 5, 7, ?, ?
posted Apr 15, 2017 by Sandeep Otari

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1 Answer

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This series can be the list of numbers that are only divisible by itself and 1 ie., prime numbers + '1'
So the sequence then is
1,2,3,5,7,11,13,17,19......etc.,

answer Apr 15, 2017 by Tejas Naik



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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.

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