Each of p and 8p -1 is a prime number.

Is 8p+1 a prime number?

• If so, provide an example.
• If not, prove it.

Computer program and spreadsheet aided methodologies are welcome, but an analytical solution is preferred.

*** Adapted from a problem appearing in a Russian Mathematical Olympiad.

(In reply to by )

A prime number only has two factors: one and itself. A composite number is made up word wipe of at least three components, and occasionally many more.

Posted by Mira Sherronm on 2023-03-07 22:46:15