Multiple choice general knowledge math & puzzles

What is the first number in the series ? 19 23 29 31

  1. 15

  2. 18

  3. 17

  4. 16
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The series 17, 19, 23, 29, 31 consists of consecutive prime numbers. Starting from 17, each subsequent number is the next prime. The pattern is clear: 17 (prime), 19 (next prime), 23 (next prime after 19), 29 (next prime after 23), 31 (next prime after 29). Option C (17) is the correct starting number.

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