Multiple choice general knowledge math & puzzles The sum of the first 100 numbers, 1 to 100 is divisible by 2, 4 and 8 2 only 2 and 4 None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation Sum of 1 to 100 = 100×101/2 = 5050. 5050 is even, so divisible by 2. 5050/4 = 1262.5 (not integer). 5050/8 = 631.25 (not integer). Therefore 5050 is divisible by 2 only, not by 4 or 8.