Prime Factor

[Suntani]

#include <stdio.h>

int main(){
int i, j, num, num1, isPrime;

scanf("%d %d", &num, &num1);

for(i = 2; i <= (num % num1); i++){
if((num % num1) % i==0){
isPrime = 1;
for(j = 2; j <= i / 2; j++){
if(i % j == 0){
isPrime = 0;
break;
}
}
if(isPrime == 1){
printf("%d ", i);

}
}
}
return 0;
}

Want to ask that is the main prime factor if for example the input 6 12 then the result is 6 but the coding instead has 2 3.


Input:
6 12
Output:
6


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[Suntani]

#include <stdio.h>

int main(){
int i, j, num, num1, isPrime;

scanf("%d %d", &num, &num1);

for(i = 2; i <= (num % num1); i++){
if((num % num1) % i==0){
isPrime = 1;
for(j = 2; j <= i / 2; j++){
if(i % j == 0){
isPrime = 0;
break;
}
}
if(isPrime == 1){
printf("%d ", i);

}
}
}
return 0;
}

Want to ask that is the main prime factor if for example the input 6 12 then the result is 6 but the coding instead has 2 3.


Input:
6 12
Output:
6


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And so if you are looking for prime numbers between the two numbers, what your complaint about 2 * 3 = 6 have to do anything with the question? Why is the title of your question "prime factor" instead of a more appropriate "prime numbers"
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[laserlight]

Suntani: you posted this twice, and it looks like you copied and pasted this from somewhere such that you both asked a question and then appear to address the question. Presently, you're giving me the impression that you're a spam bot hoping to get a couple of posts in before you unleash the spam. Please convince me otherwise by sensibly addressing my question to you:

Want to ask that is the main prime factor if for example the input 6 12 then the result is 6 but the coding instead has 2 3.

Are you aware that 6 cannot be a prime factor because it is not a prime number?

[Salem]

Cross-posted here -> Prime Factor - C And C++ | Dream.In.Code