prime check java
static boolean isPrime(int n){
boolean result=true;
if(n <= 1) return false;
for(int i = 2; i <= n/2; i++){ //n/2 because the largest factor of any number is either it's half or less than it
if(n % i == 0){
result = false; //if some number divides it, then prime=false;
break;
}
}
return result;
}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.prograhow to check if number prime in java
public class PrimeNumberInJava
{
public static void main(String[] args)
{
int a, b = 0, flag = 0;
int number = 17;
b = number / 2;
if(number == 0 || number == 1)
{
System.out.println(number + " is not prime number");
}
else
{
for(a = 2; a <= b; a++)
{
if(number % a == 0)
{
System.out.println(number + " is not prime number.");
flag = 1;
break;
}
}
if(flag == 0)
{
System.out.println(number + " is prime number.");
}
}
}
}Program to check whether the number is prime or not in java
#include <stdio.h>void main(){int value, rem;printf("Enter an int ");scanf("%d", &value);rem = value % 2;if (rem == 0)printf("%d is an even int\n", value);elseprintf("%d is an odd int\n", value);}Copyright © 2021 Codeinu
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