Do Negative Prime Numbers Exist?

  

Yes, there are negative prime numbers, but you don't have to worry about learning them. If you know the positive prime number, then you don't have far to go. The negative prime numbers are the opposites of the prime numbers.

The positive prime numbers start out with 2, 3, 5, 7, 11, 13, 17, 19, 23, etc.

The negative prime numbers start out with -2, -3, -5, -7, -11, -13, -17, -19, -23, etc.

I doubt that your teacher will even mention negative prime numbers to you. Most math text books don't even mention them.

But they are going to be fun to play with, especially if your math book asks you to see how many different prime numbers you can find that add up to a given number. See this puzzle page for a surprising answer to such a puzzle.

If you really love math, or if you might major in math in college, then, by all means, learn about negative prime numbers.