In the "short scale" used in the US and officially in the UK, there are 12 zeroes
in "one trillion" (one thousand billion).
12
1,000,000,000,000 is 1 trillion a 1 followed by 12 zeros a 1 followed by 15 zeros is 1 quardrillion
There are 15 zeros in the number 6,000,000,000,000,000 (6 trillion). ---- Actually, this is six trillion -> 6,000,000,000,000 so there are actually 12 zeros in 6 trillion.
It is: 6,000,000,000,000 so it is 12 and expressed in scientific notation it is 6.0*1012
Thousand trillion = 1,000,000,000,000,000 which has 15 zeros in it
15
Ten-thousand trillion has 16 zeros; this is also known as ten quadrillion One trillion = 1,000,000,000,000 (12 zeros) Ten trillion = 10,000,000,000,000 (13 zeros) One-hundred trillion = 100,000,000,000,000 (14 zeros) One-thousand trillion = 1,000,000,000,000,000 (15 zeros) (or one quadrillion) Ten-thousand trillion = 10,000,000,000,000,000 (16 zeros) (or ten quadrillion) That assumes the short scale (based on powers of a thousand plus 1) where thousand-trillion is not a normal moniker for a number - it would, as the answerer points out, be called ten quadrillion. The long scale (based on powers of a million) does use the moniker thousand-...illion for numbers (which are alternatively called ..illiard, eg 1000 million = 1 milliard, 1000 billion = 1 billiard, etc). In this case: 10 thousand trillion = 10000 x (106)3 = 104 x 1018 = 1022 and so has 22 zeros.
18 zeros 1 million = 6 zeros 1 billion = 9 1 trillion = 12 1 quadrillion = 15 1 quintillion = 18 1 sextillion =21
In countries that use the long scale (eg Europe): 18In countries that use the short scale (eg USA): 12
The term "quad trillion" typically refers to a number followed by 15 zeros, which is 1,000,000,000,000,000. The next number after quad trillion is often referred to as "quintillion," which is 1,000 times larger, or 1,000,000,000,000,000,000 (15 zeros followed by three additional zeros). In the short scale system, this progression continues with sextillion, septillion, and so on.
1,000,000,000,000,000 is a quadrillion in the US and a trillion in the UK and some parts of Europe.
The number 1,000,000,000,000,000 is said in English as "one quadrillion." The term "quadrillion" refers to a thousand trillion, which is represented by a one followed by 15 zeros.