Section: Math

98) Which of the following is true? 

1. Zero is the smallest prime number. 
2. Zero is a negative number.
3. The largest factor of 42 is 14. 
4. The sum of a positive number and its correlating negative is always zero.

Answer 4 is correct. -1+1=0, -42+42=0, etc. As for the others, zero is neither positive or negative and is not a prime number. Furthermore, 14 is not the largest number that will go into 42. That would be 42 itself.