Multiple choice general knowledge math & puzzles

How many prime numbers are there up to 50?

  1. 13

  2. 15

  3. 17

  4. 21

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The prime numbers up to 50 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47. Counting them results in exactly 15 prime numbers.