Easy series!!

Number Theory Level 1

Find the next number in the series.

3968,63,8,3,?

2 solutions

Mitesh Warang
Jul 15, 2014

This series can be written as

$n^{2}$ - 1

Therefore $3=n^{2}-1$

$n=2$

Oliver Daniel
Jul 20, 2014

Just did some guess work. Though that 3968 might be related to 63 and tried 63^2 and got 3969 and worked back .