text: 	// CommonJS, AMD, script tag
  	if (typeof exports !== 'undefined') {
  		module.exports = gcd;
  	} else if (typeof define === 'function' && define.amd) {
  		define(() => {
  			return gcd;
  		});
  	} else {
  		global.gcd = gcd;
  	}
  }(typeof window !== 'undefined' ? window : global));
  