UNIT 8: FACTORING

To 'factor' a number means to break it up into numbers that can be multiplied together to get the original number. EXAMPLES: 6 = 3 X 2 The factors of 6 are 3 and 2 9 = 3 X 3 The factors of 9 are 3 and 3 Sometimes, numbers can be factored into different combinations. For example: 8 = 4 X 2 = 2 X 2 X 2 Two different ways to factor: 18 = 9 X 2 or 6 X 3 |

Factor the following numbers.

1) | 10 |
2) | 15 |

3) | 20 |
4) | 21 |

5) | 22 | 6) | 4 |

7) | 12 | 8) | 14 |

9) | 26 | 10) | 27 |

11) | 25 | 12) | 30 |

13) | 28 | 14) | 50 |

15) | 33 | 16) | 34 |

17) | 70 | 18) | 46 |

19) | 39 | 20) | This problem is hard! 169 |

21) | This problem is hard! 95 |
22) | This problem is hard! 221 |