Multiple choice Find the missing term in the following series: 17, 19, 41, 127, 513, 2571, ? 15435 15431 15421 15433 15419 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The given series is based on the following pattern: 17 x 1 + 2 = 19 19 x 2 + 3 = 41 41 x 3 + 4 = 127 127 x 4 + 5 = 513 513 x 5 + 6 = 2571 ? = 2571 x 6 + 7 = 15433 Hence, 15433 will replace the question mark.