**top**

"One, ten, hundred, thousand, ten thousand, hundred thousand, million, ten million, hundred million, billion, ..."

Names are on threes... on 3, 6, 9 (thousand, million, billion).Each

## Notes...

Some people count by `talking" the numbers, others by `seeing" them.(Source: Feynman"s story (in "Curious Character"?)). You can try itand see. Counting "1, 2, 3, ...", are you saying "one, two,three", or are you picturing "1", "2", "3"? I say them, butsometimes practice picturing. Feynman reports that if you say them,you can read at the same time, but may have trouble talking. If youpicture them, you can talk, but reading is difficult. Perhaps Ishould dig up the Feynman story and flesh this out as a page? Itwould also be nice to have a crosscheck on the concept.Notes:Doables:History: 2003-Feb-03 Fixed 2 links. Added this History. mid 1990"s Created.

Counting by powers of ten | Counting to ten billion... on your fingers "What order of magnitude ins ...?" game Exponential Notation |

One | 100 | 1. You are watching: 10 to the power of 13 | "ten to the zero" |

ten | 101 | 10. | "ten to the one" |

hundred | 102 | 100. | "ten to the two" |

thousand | 103 | 1,000. | "ten to the three" |

ten thousand | 104 | 10,000. | "ten to the four" |

hundred thousand | 105 | 100,000. | "ten to the five" |

million | 106 | 1,000,000. | "ten to the six" |

ten million | 107 | 10,000,000. | "ten to the seven" |

hundred million | 108 | 100,000,000. | "ten to the eight" |

billion | 109 | 1,000,000,000. | "ten to the nine" |

ten billion | 1010 | 10,000,000,000. | "ten to the ten" |

hundred billion | 1011 | 100,000,000,000. | "ten to the eleven" |

trillion | 1012 | 1,000,000,000,000. | "ten to the twelve" |

ten trillion | 1013 | 10,000,000,000,000. | "ten to the thirteen" |

hundred trillion | 1014 | 100,000,000,000,000. | "ten to the fourteen" |

**,000,**. The names "billion" and "trillion" mean different things in differentcountries. This is the US version. There are a few more names after "trillion", but they are almost never used.## Links

IEER"sLearning Common Prefixes. Includes SI prefixes. Erik Max Francis"s "A comprehensive table of all SI prefixes".A View from the Back of the EnvelopeComments encouraged. - Mitchell N Charity mcharity lcs.mit.edu> |