×

1296, 648, ?, 108, 36, 18, 6, 3

1296, 648, ?, 108, 36, 18, 6, 3

Explanation

3 × 2 = 6

6 × 3 = 18

18 × 2 = 36

36 × 3 = 108

108 × 2 = 216

216 × 3 = 648

648 × 2 = 1296