Identify the number that does NOT belong to the following series. 14, 21, 63, 378, 3402

3402 14 21 378

3402

14, 21, 63, 378, 3402 14 × 1.5 = 21 21 × 3 = 63 63 × 6 = 378 378 × 12 = 4536 ≠ 3402 Hence , 3402 is wrong in series .