Back to Index | Print Version Answers |

Worksheet 4 - The Highest Common Factor (HCF) and the Lowest Common Multiple (LCM) (Difficulty level: Very Hard) | ||||
---|---|---|---|---|

The Highest Common Factor (H.C.F.) of: | ||||

420 and 756 is ____ | 630 and 1008 is ____ | 1764 and 1372 is ____ | 2205 and 1470 is ____ | 4900 and 4410 is ____ |

180 and 240 is ____ | 1960 and 980 is ____ | 8575 and 11025 is ____ | 4200 and 3675 is ____ | 1008 and 882 is ____ |

168 and 504 is ____ | 336 and 252 is ____ | 1260 and 1050 is ____ | 630 and 420 is ____ | 840 and 1050 is ____ |

1050 and 600 is ____ | 180 and 810 is ____ | 336 and 588 is ____ | 1134 and 630 is ____ | 450 and 630 is ____ |

1176 and 2646 is ____ | 450 and 270 is ____ | 540 and 720 is ____ | 1890 and 630 is ____ | 1764 and 2352 is ____ |

405 and 324 is ____ | 1120 and 980 is ____ | 4802 and 3430 is ____ | 840 and 700 is ____ | 2646 and 2058 is ____ |

420 and 672 is ____ | 588 and 1764 is ____ | 1890 and 1680 is ____ | 600 and 500 is ____ | 504 and 252 is ____ |

945 and 1890 is ____ | 7203 and 6174 is ____ | 2800 and 1050 is ____ | 336 and 252 is ____ | 168 and 192 is ____ |

3150 and 1050 is ____ | 200 and 120 is ____ | 80 and 360 is ____ | 180 and 300 is ____ | 216 and 108 is ____ |

1750 and 500 is ____ | 567 and 243 is ____ | 675 and 810 is ____ | 5145 and 3675 is ____ | 1875 and 750 is ____ |

1050 and 2100 is ____ | 980 and 700 is ____ | 8575 and 5145 is ____ | 108 and 216 is ____ | 1960 and 4410 is ____ |

420 and 588 is ____ | 216 and 72 is ____ | 270 and 324 is ____ | 1575 and 3150 is ____ | 2352 and 2646 is ____ |

1890 and 630 is ____ | 216 and 192 is ____ | 2940 and 4410 is ____ | 2450 and 11025 is ____ | 1875 and 2250 is ____ |

810 and 675 is ____ | 1500 and 1125 is ____ | 720 and 630 is ____ | 588 and 1470 is ____ | 630 and 1008 is ____ |

1764 and 882 is ____ | 144 and 168 is ____ | 672 and 168 is ____ | 945 and 2520 is ____ | 120 and 180 is ____ |

The Lowest Common Multiple (L.C.M.) of: | ||||

126 and 540 is ____ | 1715 and 2240 is ____ | 135 and 490 is ____ | 210 and 1225 is ____ | 140 and 288 is ____ |

294 and 1050 is ____ | 54 and 192 is ____ | 735 and 3584 is ____ | 90 and 900 is ____ | 294 and 1176 is ____ |

60 and 840 is ____ | 735 and 960 is ____ | 90 and 1280 is ____ | 525 and 896 is ____ | 140 and 360 is ____ |

525 and 72 is ____ | 686 and 300 is ____ | 735 and 112 is ____ | 525 and 576 is ____ | 90 and 1344 is ____ |

40 and 256 is ____ | 54 and 200 is ____ | 84 and 640 is ____ | 60 and 324 is ____ | 350 and 448 is ____ |

210 and 90 is ____ | 140 and 216 is ____ | 686 and 1344 is ____ | 350 and 480 is ____ | 90 and 36 is ____ |

210 and 2058 is ____ | 490 and 192 is ____ | 90 and 672 is ____ | 490 and 672 is ____ | 315 and 300 is ____ |

140 and 168 is ____ | 294 and 225 is ____ | 225 and 2352 is ____ | 294 and 630 is ____ | 210 and 144 is ____ |

735 and 672 is ____ | 1715 and 1344 is ____ | 210 and 600 is ____ | 140 and 980 is ____ | 315 and 1680 is ____ |

150 and 784 is ____ | 210 and 252 is ____ | 189 and 224 is ____ | 54 and 350 is ____ | 196 and 378 is ____ |

735 and 3072 is ____ | 2401 and 490 is ____ | 150 and 448 is ____ | 150 and 288 is ____ | 225 and 192 is ____ |

735 and 40 is ____ | 735 and 140 is ____ | 84 and 288 is ____ | 60 and 1568 is ____ | 140 and 120 is ____ |

735 and 480 is ____ | 126 and 768 is ____ | 84 and 128 is ____ | 100 and 1120 is ____ | 126 and 630 is ____ |

16 and 784 is ____ | 225 and 180 is ____ | 40 and 1920 is ____ | 210 and 896 is ____ | 60 and 240 is ____ |

210 and 200 is ____ | 90 and 320 is ____ | 135 and 700 is ____ | 735 and 2016 is ____ | 315 and 192 is ____ |

Copyright 2009 - Adam Malinowski. (Member of CAL, Statutory Licence Schemes)