a boy with a collection of marbles realizes that if he makes a group of 5 or 6 marbles at a time there are always 2 marbles left can you explain why the boy cannot have prime number of marbles
a boy with a collection of marbles realizes that if he makes a group of 5 or 6 marbles at a time there are always 2 marbles left can you explain why the boy cannot have prime number of marbles