Create PrimeFactors.java

GKcodebase · GKcodebase · commit f720bc3e02fc · 2025-11-09T12:10:14.000-06:00
diff --git a/JavaBook/NumberThoery/PrimeFactors.java b/JavaBook/NumberThoery/PrimeFactors.java
@@ -0,0 +1,33 @@
+public class PrimeFactors {
+    public static void primeFactors(int n){
+        for(int i=2; i<=Math.sqrt(n);i++){
+            while(n%i==0){
+                System.out.print(i+" ");
+                n=n/i;
+            }
+        }
+        if(n>1){
+            System.out.print(n+" ");
+        }
+    }
+    public static boolean isPrime(int n){
+        if(n<=1){
+            return false;
+        }
+        for(int i=2;i<=Math.sqrt(n);i++){
+            if(n%i==0)
+                return false;
+        }
+        return true;
+    }
+    public static void main(String args[]){
+        int n = 125;
+        primeFactors(n);
+        System.out.println();
+        if(isPrime(n)){
+            System.out.println(n + " is a prime number.");
+        }else{
+            System.out.println(n + " is not a prime number.");
+        }
+    }
+}
