Multiple choice general knowledge math & puzzles

Which of the following is a composite number?

  1. 37

  2. 47

  3. 57

  4. 67

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

A composite number has more than two factors. 37, 47, and 67 are prime numbers. 57 is composite because it is divisible by 3 and 19 ($3 \times 19 = 57$). Thus, 57 is the correct choice.