21
A single number, such as 12848384 does not make a series.
The next number is -21
The answer is 21.Your numerical series is the beginning of a mathematical sequence called Fibonacci Numbers.The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself (i.e. 0, 1, 1, 2, 3, 5, 8, 13, 21, etc.).
This is the series of square numbers, (16= 4*4). The next number is 5*5=25.
A single number, such as 364758 does not describe a sequence, nor a series.
59 is the next number in this series.
I'm convinced that 3,840 is.
The next number in the series is 67.
the answer will be 21
10
225
A single number such as 61205041320 does not make a series.