Question

2,6,12,72,865,62208 find the wrong number in the series

Answer 1

$2 \times 6 = 12 \\ 6 \times 12 = 72 \\ 12 \times 72 = 864 \\ hence \: 865 \: is \: the \: wrong \: number$

Answer 2

2×6=12
6×12=72
12×72=864
but here's given 865.therefore it's the wrong term