### Home > INT2 > Chapter 4 > Lesson 4.1.5 > Problem 4-51

4-51.

Are the prime numbers a closed set under addition? Justify your conclusion. Homework Help ✎

Does any sum of two prime numbers always equal another prime number?

4-51.

Are the prime numbers a closed set under addition? Justify your conclusion. Homework Help ✎

Does any sum of two prime numbers always equal another prime number?