prime in java
public class Prime {
public static void main(String[] args) {
int num = 29;
boolean flag = false;
for(int i = 2; i <= num/2; ++i){
if(num % i == 0){
flag = true;
break;
}
}
if (!flag)
System.out.println(num + " is a prime number.");
else
System.out.println(num + " is not a prime number.");
}}
Source:www.prograjava prime
public class Prime {
public static boolean isPrime(int num) {
if (num<2)
return false;
for(int i=3;i<=Math.sqrt(num);i+=2)
if(num%i==0)
return false ;
return true ;
}
}Copyright © 2021 Codeinu
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