Multiple choice general knowledge What is the lowest prime number? 0 1 2 3 5 Reveal answer Fill a bubble to check yourself C Correct answer Explanation A prime number must have exactly two distinct factors: 1 and itself. 2 is the lowest prime number (factors: 1, 2). 0 has infinite factors, 1 has only one factor, and while 3 and 5 are prime, they are not the lowest.