Table of Contents

## What is the prefix for 1 billionth?

Nano

Nano (symbol n) is a unit prefix meaning “one billionth”.

### What is the prefix for a quadrillion?

peta P

SI Prefixes

prefix | symbol | (American) English word |
---|---|---|

exa | E | quintillion |

peta | P | quadrillion |

tera | T | trillion |

giga | G | billion |

#### What does Deka mean in math?

Deca (International spelling as used by the International Bureau of Weights and Measures; symbol: da) or deka (American spelling) is a decimal unit prefix in the metric system denoting a factor of ten. The term is derived from the Greek déka (δέκα) meaning ten.

**What does prefix hecto mean?**

In the SI, designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth.

**Is pico a trillionth?**

Pico (unit symbol p) is a unit prefix in the metric system denoting a factor of one trillionth in the short scale and one billionth in the long scale (0.000000000001); that is, 10−12.

## What is the prefix of sextillion?

zetta

Name | Prefix | Power of ten |
---|---|---|

sextillion | zetta | 21 |

quintillion | exa | 18 |

quadrillion | peta | 15 |

trillion | tera | 12 |

### What is after Pico?

We may write hW = 169 000 mm = 16 900 cm = 169 m = 0.169 km using the millimeter (SI prefix milli, symbol m), centimeter (SI prefix centi, symbol c), or kilometer (SI prefix kilo, symbol k)….Table 5. SI prefixes.

Factor | Name | Symbol |
---|---|---|

10-6 | micro | µ |

10-9 | nano | n |

10-12 | pico | p |

10-15 | femto | f |

#### What is the prefix for deka?

ten

Deka- is a combining form used like a prefix meaning “ten.” It is primarily used in the names of metric units to indicate that the measure is ten times the size of the unit denoted by the base word.

**What’s after Deca?**

Numeric prefixes (mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca) Examples: H2AsO4– = dihydrogen arsenate ion. HAsO42- = hydrogen arsenate ion.