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15 lines
224 B
C++
15 lines
224 B
C++
#include <iostream>
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using namespace std;
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int main(){
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int a,b=0;
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cin >>a;
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for(int i=2;i*i<=a;i++){
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if(a%i==0){
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cout <<a<<" is a prime number.";
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return 0;
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}
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}
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cout <<a<<" is not a prime number.";
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return 0;
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}
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