A Quadrillion has _________ zeros?
A. 15 zeros
B. 18 zeros
C. 21 zeros
D. None of these
Thousand, Million, Billion, Trillion, Quadrillion, Quintillion-each comes with three additional zeroes. Even though there are names beyond Quintillion.
The numbers are written with scientific notation to make them easier to read and understand.
| Name |
Number |
| Million |
1 x 106 |
| Billion |
1 x 109 |
| Trillion |
1 x 1012 |
| Quadrillion |
1 x 1015 |
| Quintillion |
1 x 1018 |
| Sextillion |
1 x 1021 |
| Septillion |
1 x 1024 |
| Octillion |
1 x 1027 |
| Nonillion |
1 x 1030 |
| Decillion |
1 x 1033 |
| Undecillion |
1 x 1036 |
| Duodecillion |
1 x 1039 |
| Tredecillion |
1 x 1042 |
| Quattuordecillion |
1 x 1045 |
| Quindecillion |
1 x 1048 |
| Sexdecillion |
1 x 1051 |
| Septendecillion |
1 x 1054 |
| Octodecillion |
1 x 1057 |
| Novemdecillion |
1 x 1060 |
| Vigintillion |
1 x 1063 |
| Unvigintillion |
1 x 1066 |
| Duovigintillion |
1 x 1069 |
| Trevigintillion |
1 x 1072 |
| Quattuorvigintillion |
1 x 1075 |
| Quinvigintillion |
1 x 1078 |
| Sexvigintillion |
1 x 1081 |
| Septenvigintillion |
1 x 1084 |
| Octovigintillion |
1 x 1087 |
| Nonvigintillion |
1 x 1090 |
| Trigintillion |
1 x 1093 |
| Untrigintillion |
1 x 1096 |
| Duotrigintillion |
1 x 1099 |
| Ten-duotrigintillion (or Googol) |
1 x 10100 |
| Skewer’s Number |
1 x 10130 |
| Centillion |
1 x 10303 |
| Googolplex |
1 x 1010100 |