Given: class Prime { int num; Prime(int num) { this.num = num; } } public class Test { public static void main (String[] args) { Prime obj1 = new Prime(13); Prime obj2 = new Prime(13); if (obj1 == obj

'Equal' is incorrect because object references obj1 and obj2 point to different memory locations, making obj1 == obj2 false.

'Equal' is incorrect because the Prime class does not override the equals() method, so it defaults to Object.equals(), which also performs a reference comparison, thus obj1.equals(obj2) is false.

Both obj1 == obj2 and obj1.equals(obj2) evaluate to false because new Prime(13) creates two separate objects in memory, meaning their references are different and the default equals() method also performs reference comparison. Therefore, both conditional blocks print 'Not equal'.