1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slavikrds [6]
3 years ago
5

circular_prime A number is called a circular prime if all rotations of its digits form a prime. For example, the number 197 is a

circular prime because all possible rotations of its digits: (197, 971, 719) are prime numbers. Write a program that reads in an integer 1 en 10^5 as input and prints True if n is a circular prime and False otherwise.
Computers and Technology
1 answer:
Lilit [14]3 years ago
3 0

Answer:

function out=circular_primes(no)

prim=primes(no);% find the all prime number till the given number

pr=0;

nos=[];

po=[];

for p=1:length(prim)

   n=prim(p); % picking up each prime no one by one

   n=num2str(n);% change into string for rotation of no

   d=length(n); % length of string

   if d>1          % take nos greater than 10 beacuase below 10 no need for rotation

       for h=1:d

           a=n(1);

           for r=1:d % for rotation right to left

               if r==d  5 % for the last element of string

                   n(d)=a;

               else

               n(r)=n(r+1); %shifting

               end

           end

           

       s=str2num(n); % string to number

       nos=[nos,s]; % store rotated elements in array

       end

       if nos(end)==no   %if given no is also a circular prime we need smaller

           break;

       end

       for gr=1:length(nos) % checking rotated nos are prime or not

           p1=isprime(nos(gr));

           po=[po,p1];    %storing logical result in array

       end

           if sum(po(:))==length(nos) %if all are prime the length and sum are must be equal

               

               pr=pr+1;

               out=pr;

           else

               out=pr;

           end

       po=[];

       nos=[];

   else  

       s=str2num(n); %numbers less than 10

       f=isprime(s);

       if f==1

           pr=pr+1;

           out=pr;

       else

           out=pr;

       end

   end

       

      end

end

Explanation:

You might be interested in
C++ Question: what is in the blanks?
Igoryamba

You didn't specify what the program should output, so there are many possibilities that result in a working program. It *looks* like this was intended:

int x = 24;

int y;

y = x-12;

cout<<y<<endl;

and it will display 12.

8 0
3 years ago
How are you doing this fine morning <br><br> hi
notka56 [123]
It's evening................∆
6 0
3 years ago
Read 2 more answers
tion. 6. A step occasionally required to repair damaged relationships is O A. looking at the problem from the other person's poi
Marta_Voda [28]
The answer to this question is b that's the answer
5 0
3 years ago
Which of the following methods is a static method? The class in which the method is defined is given in parentheses following th
maw [93]

Answer:

C. sqrt(Math)

Explanation:

All but one of options A to E are is not a static method.

Only option C is a static method. The sqrt() is a static method of Math, that can always be used as Math.sqrt() is used;

The Math class defines all of its methods to be static. Invoking Math methods is done by using Math as a method rather than a variable of type Math; this means that sqrt(Math) doesn't rely on instance variables and don't need to be overridden, unlike others.

Lastly, sqrt(Math) is a static method because unlike other options, it is an utility method, and it is relevant to computations on primitive data types.

The purpose of the static method is in large part to offer a standard library of functions, and it doesn't need to be applied directly to an object.

4 0
3 years ago
1. When a program routine constantly looks a certain condition and executes a command when the condition is met, this is called:
zepelin [54]
This is Called Polling
8 0
3 years ago
Other questions:
  • Which is a function of network media?
    11·2 answers
  • Started: Sep 28 at 1:45p 5 Quiz Instructions les 1 pts Question 1 Computer Hardware can consist of what​
    13·1 answer
  • Which of the following is not regression test case? A. A representative sample of tests that will exercise all software function
    10·1 answer
  • In order to organize your work effectively on the computer, where is the best place to save it?
    14·2 answers
  • Using Visio, create a Local Area Network (LAN) consisting of 12 computers, a switch, and three printers. The switch should be in
    11·1 answer
  • Given a collection of n nuts and a collection of n bolts, arranged in an increasing order of size, give an O(n) time algorithm t
    5·1 answer
  • While reviewing system logs, a security analyst notices that a large number of end users are changing their passwords four times
    13·1 answer
  • 1. What type of malware is triggered by a specific condition, such as a specific date or a particular user account being disable
    6·1 answer
  • This is used to copy information from cell to cell in the spread sheet
    7·1 answer
  • What is the answer ????​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!