Multiple choice

Find the missing term in the following series:

17, 19, 41, 127, 513, 2571, ?

  1. 15435

  2. 15431

  3. 15421

  4. 15433

  5. 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.