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# Draper Math 8 Voc #2

### Math Vocabulary

Term | Definition |
---|---|

prime number | a whole number greater than 1 that has exactly 2 factors, 1 and itself. |

composite number | any whole number greater than one that has more than 2 factors. |

prime factorization | expressing a composite number as the product of prime numbers (ex. 63=3x3x7) |

absolute value | the number of units a number is from zero (0) on the number line. |

exponent | in a power, the number of times the base number is used as a factor. |

base | in a power, the number used as a factor. |

greatest common factor (GCF) | the greatest of the common factors of two or more numbers. |

least common multiple(LCM) | the least of the non-zero common multiples of two or more numbers. |

reciprocal | the multiplicitive inverse of a number |

opposite (of a given number) | two integers are opposites if they are represented on the number line by points that are the same distance from zero, but on opposite sides of zero. The sum of opposites is zero (0). |

Odd Number | Number that cannot be divided by 2. |

Even Number | Number that is divisable by 2. |

Estimate | To make an educated guess. |

Greater Than | More than or bigger than. |

Less Than | Not as many as or smaller than. |

Decrease | Get smaller in size or number. |

Increase | Get larger in size or number. |

Probability | The chance that a particular outcome will occur. |

Congruent | Having the same shape and size. |

Perpendicular | Lines that intersect at right angles to eachother. |

Parallel | Lines that are the same distance apart. |

Symmetry | When one half of an object is a mirror image of the other half. |

Created by:
Ben McGrath
on 2004-09-22