For which positive integers n is n4 + 4n prime?
For which positive integers n is n4 + 4n prime?
This problem has been solved!
Do you need an answer to a question different from the above? Ask your question!
Answer
If n is even, then n 4 + 4 n is an even composite number, so we can restrict ourselves to n odd. Th…View the full answer
Related Book For 
Discrete Mathematics and Its Applications
7th edition
Authors: Kenneth H. Rosen
ISBN: 978-0073383095