Which number is composite? 31 43 37 49

A composite number is one that can be made by multiply two numbers to each other. Since 49=7*7, 49 is a composite number.

Check:

You can check a multiplication chart, but you will see that 49 is the only one that can be multiplied by 2 numbers

269MPH

Step-by-step explanation:

I had to sacrifice and guess on the quiz, but this was the right answer