Multiple choice

The sum of all prime numbers less than 29 is

  1. 129

  2. 77

  3. 121

  4. 100

  5. None of these

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

2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 = 100