What's wrong with the code? I just can't seem to figure it out.

Question

https://code.sololearn.com/c7LvfLJP43l9/?ref=app

Answer 1

Your code does not really calculate primes. A number N is a prime number if it has only 2 divisors (without giving a remainder): 1 and N itself.
To implement a very basic calculation, you have to take the input number N, and dived it in a loop by all numbers from 2 up to N. If N can be divided evenly without a remainder by one of these values, it is not a prime number. If it can not be divided without a remainder it is a prime value.

Answer 2

okay...
there are two probs in your code

1. no loop
2. to check if x is devisible by i ist tested by x%i == 0

not too much work to do
go on. 👍

Answer 3

Lothar I think he will make it.
Have a good feeling.

Answer 4

at least a loop is missing.
I dont understand your algorithm idea
please explain for input 5

Answer 5

In your last version all numbers, including primes, will be shown as composite. (yes, i did link a code from a total different task here, but i deleted it a minute later - sorry for this!)

Answer 6

sTiNgRaY better and better

Answer 7

👍👍👍but 2 is a special caseLothar we give him an A?

Answer 8

Thanks a lot! I'll update the code and see if it works 👍

Answer 9

No idea how to do that Oma Falk . I've done only the first two modules as of now and have no practice at all.

Answer 10

If you're looking for coding puzzles, there are lots in the "community challenge" section under the "Learn" tab of the home page. This Android app has quite a lot: https://play.google.com/store/apps/details?id=com.alansa.ideabag2I

Answer 11

I'm trying to do a loop which checks if x is divisible by at least one value of i so that it is composite.

Answer 12

I tried but still can't work it out.

Answer 13

Thank you! That made it clearer. I'll edit it and make it work

Answer 14

Thanks a lot guys! I've updated it and it now works! Please do test it if you want and let me know! Lothar Oma Falk

Answer 15

Did you link the wrong code by mistake?

Answer 16

It is finally done! It now works flawlessly! Please do check it out and let me know if there are any further mistakes to be corrected! Thank you a lot for your feedback! This is what keeps me going and helps a lot!

Answer 17

Thanks a ton! Tell me if you have some projects for beginners. Looking forward to it. Also, 2 works now as well!

Answer 18

https://code.sololearn.com/cuuMEAElTld8/?ref=app

Answer 19

YOU laZY GUY
WOULD YOU MIND USING YOUR BRAIN PLEEEEEAÀAASE
3😤😤

Answer 20

🤣🤣🤣 now....try it later
Primes were not so bad.