Any number that you choose can be the next number. It is easy to find a rule based on a polynomial of order 5 such that the first five numbers are as listed in the question followed by the chosen next number. There are also non-polynomial solutions. Short of reading the mind of the person who posed the question, there is no way of determining which of the infinitely many solutions is the "correct" one.
The simplest solution, based on a polynomial of order 4, is
t(n) = (197*n^4 - 1854*n^3 + 6259*n^2 - 8730*n + 4152)/24 for n = 1, 2, 3, ...
and, accordingly, the next number is 1331.
it is 31818 - 8 = 1010 - 4 = 66 - 2 = 44 - 1 = 3
175175
2
This series follows the following repetitive pattern:Subtract 4divide by 3multiply by 2Give this context, the next number would be 12.
-57The first two numbers in the series has a difference of 89. The next two numbers (209, 129) has a difference of 80. The next two (129,58) has a difference of 71. As you can see the differences change by 9, so the next two numbers in the series (58, -4) has a difference of 62. Following this pattern, the next two numbers in the series will have a difference of 53. So the next number in this series will be (-4-53 = -57).
A single number, such as 12848384 does not make a series.
it is 31818 - 8 = 1010 - 4 = 66 - 2 = 44 - 1 = 3
A single number, such as 364758 does not describe a sequence, nor a series.
I'm convinced that 3,840 is.
15
30
184
175175
The pattern is - 5 then +2. 2 and 4 are the next numbers in the series.
184
6
2