Million Billion Trillion

Million

var Thousand = Math.pow(10,3),
    Million;

//Million  = Math.pow(10,3) * Math.pow(10,3);
//Million  = Math.pow(10,6);

Million    = Thousand * Thousand;

Billion

var Thousand = Math.pow(10,3),
    Million  = Thousand * Thousand,
    Billion;

//Billion  = Math.pow(10,3) * Math.pow(10,3) * Math.pow(10,3);
//Billion  = Math.pow(10,6) * Math.pow(10,3);
//Billion  = Math.pow(10,9);

//Billion  = Thousand * Thousand * Thousand;
Billion    = Million * Thousand;

Trillion

var Thousand = Math.pow(10,3),
    Million, Billion, Trillion;

//Million  = Math.pow(10,3) * Math.pow(10,3);
//Million  = Thousand * Thousand;
Million    = Math.pow(10,6);

//Billion  = Math.pow(10,3) * Math.pow(10,3) * Math.pow(10,3);
//Billion  = Thousand * Thousand * Thousand;
//Billion  = Math.pow(10,6) * Math.pow(10,3);
//Billion  = Million * Thousand;
Billion    = Math.pow(10,9);

//Trillion = Math.pow(10,3) * Math.pow(10,3) * Math.pow(10,3) * Math.pow(10,3);
//Trillion = Thousand * Thousand * Thousand * Thousand;
//Trillion = Math.pow(10,6) * Math.pow(10,6);
//Trillion = Million * Million;
//Trillion = Math.pow(10,9) * Math.pow(10,3);
//Trillion = Billion * Thousand;
Trillion   = Math.pow(10,12);