Need to know how many zeros a quintillion has?
Simple formula is:
(1000 ^ Modifier) * 1000
e.g. Million has a modifier of 1 => (1000 ^ 1) * 1000 = 1000000
Billion (modifier ‘bi’ => 2) => (1000 ^ 2) * 1000
Trillion (modifier ‘tri’ => 3) => (1000 ^ 3) * 1000
Get it?
Modifiers are:
bi => 2
tri => 3
quadri => 4
quinti => 5
etc…