Attempt1:

angular.module("app456",[]).factory("factorySum",function() {

	var totals = function(a,b) {
		return a*b;
	};

	return { total: totals };
});





Attempt2:


angular.module("app456",[]).factory("factorySum",function() {

	function totals(a,b) {
		return a*b;
	};

	return { total: totals(a,b) };
});