2^n+1=2^n+1^n (2^(n-2))^2+(1^(n-2))^2 [ like a^2 + b^2 ] (2^(n-2)+1)*(

java program that takes a 3 digit number n and finds out
whether
the number 2^n + 1 is prime, or if it is not prime find out
its
factors.

Question Posted / nithi

Answer Posted / nithi

2^n+1=2^n+1^n
(2^(n-2))^2+(1^(n-2))^2 [ like a^2 + b^2 ]
(2^(n-2)+1)*(2^(n-2)-1)) [ like (a+b) (a-b) ]

So factors is 2^(n-2)+1),2^(n-2)-1)

Is This Answer Correct ?

0 Yes

2 No

Please Help Members By Posting Answers For Below Questions

Is null a value?

562

Why main function is static?

674

Explain about main thread in java?

610

What does bitwise or mean?

568

Which of the classes will have more memory allocated?

540

What is byte [] in java?

536

Explain the Propertie sof class?

586

Given a singly linked list, determine whether it contains a loop or not without using temporary space?

582

What is bean? Where it can be used?

604

Variable of the boolean type is automatically initialized as?

593

What is gc()?

579

Can keyword be used as identifier?

547

What Is Composition?

582

What kind of variables can a class consist?

587

Explain java coding standards for methods?

606