100,000,000,000,000,000,000

... Which to be the value of the greatest denomination note ever issued. It was a 100,000,000,000,000,000,000 Pengo note, issued by Hungary in 1946. The student in my class wanted to know exactly how they might say the last sentence in native in English. So i told lock that i didn"t know. They stated to me the if they wanted to check out this little bit of creating to someone they"d want to have the ability to use the words. Same point.

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It"s:

one hundred quintillion

or:

a hundreds quintillion

The words because that very big numbers

If you"re wondering just how to kind other vast numbers prefer this, here"s the pattern:

A thousands thousands is a million: 1,000,000.

A thousand millions is a billion: 1,000,000,000.

A thousand billions is a trillion: 1,000,000,000,000.

A thousands trillions is a quadrillion: 1,000,000,000,000,000.

A thousand quadrillions is a quintillion: 1,000,000,000,000,000,000.

A thousand quintillions is a sextillion: 1,000,000,000,000,000,000,000.

And for this reason on. The component before -illion is the Latin prefix for the number of times you went through the process of multiply by a thousand. So, girlfriend can continue to septillion, octillion, nonillion, decillion, undecillion, duodecillion, and also so top top forever.

Within the scale identified by one of these substantial units, you main point by a number indigenous 1 to 999 in the usual manner, by putting the multiplier ahead of the unit, and also you include smaller number by placing them after ~ the unit, in the same manner together for thousands:

215,002 is "two hundred fifteen thousand and two".

215,000,000,000,000,000,002 is "two hundred fifteen quintillion and two".

The usual customizeds for "hundred" apply:

123,456,100,000,000,000,000 is "a hundred and also twenty-three quintillion 4 hundred and fifty-six quadrillion one hundred trillion" or "one hundred twenty-three quintillion four hundred fifty-six quadrillion one hundreds trillion", or other variations, the exact same as for numerous thousands.

Exponents

When you work with these numbers top top a day-to-day basis favor I do,* you soon discover that they come to be rather unwieldy, at the very least until you gain up to a centillion pengős.† In the physical sciences, if not in economics, one normally writes and also pronounces these numbers using powers the ten. A quintillion is 1018, which girlfriend pronounce choose this:

Ten come the eighteenth power.

Ten come the eighteenth.

Ten come the eighteen.

In scientific notation, you always choose one exponent large enough for this reason the multiplier has actually one number to the left that the decimal point, favor this: 2.15 ⨉ 1017. That"s pronounced:

215 quadrillion is "two suggest one five times ten come the seventeenth."

If the multiplier is exactly 1, you have the right to omit it in speech. So:

100,000,000,000,000,000,000 is a hundreds quintillion, or ten come the twentieth power.

Does anybody really say “quintillion”?

“Quintillion” is an obscure word, though not much much more obscure 보다 “quadrillion”, which regularly gets totted out when government budgets and monetary inflation do news. A fluently speaker deserve to guess the from the pattern of “billion”, “trillion”, etc. Here are a couple of samples to illustrate usual contexts where human being really usage it to communicate (that is, not simply to talk around words for huge numbers, which can be that is most constant use):

Government budgets: “For instance, the intended state earnings for oil and also gas was lessened from 99,591 quintillion rupiah (about 9 exchange rate euro) come 72,930 quintillion rupiah.”

Pop science: “The quantum simulation of the 69 electrons need to specify all possible 600 quintillion says simultaneously.”

Bizarre religious tracts: “When this world collapses in 70–100 billion year from now Jesus has offered Kush a Quintillion universes prefer the one us live in as its are forever. That is our promised land.”

Very short probabilities result from calculations: “Using FBI statistics, Schoon calculated the the DNA file at problem would be found in 1 in 2.7 quintillion African-Americans, 1 in 52 quintillion Caucasians and also 1 in 260 quintillion spain unrelated individuals.” (This is indigenous a U.S. Appmoment-g.comate court opinion.)

Often when “quintillion” appears in print, the accompanied through an explanation. Usually as soon as I’ve viewed it used without explanation, it’s been in the paper definition of economics. Presumably the crowd is fine accustomed to talking about huge sums that money.

See more: Ode To Enchanted Light By Pablo Neruda, Ode To Enchanted Light

Long scale and also short scale

Notice the in the Indonesian spending plan described above, “quintillion” occurs v multipliers better than 999. That suggests that they"re complying with the “long scale” system, in i beg your pardon each succeeding ‑illion is a million times better than the ahead one. That"s an older usage, now nonstandard in English in all countries, yet some world still use it, especially in nations like Indonesia whereby the dominant language follows the long-scale system. Watch kasperd"s answer for an ext about that.