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: | ||||

5880 and 5145 is ____ | 3430 and 10290 is ____ | 5250 and 4375 is ____ | 560 and 700 is ____ | 13720 and 12005 is ____ |

1960 and 1470 is ____ | 480 and 180 is ____ | 450 and 540 is ____ | 3375 and 2250 is ____ | 1120 and 420 is ____ |

1372 and 784 is ____ | 200 and 900 is ____ | 2520 and 630 is ____ | 504 and 252 is ____ | 810 and 945 is ____ |

784 and 392 is ____ | 588 and 1176 is ____ | 6860 and 12005 is ____ | 6615 and 4410 is ____ | 5145 and 3087 is ____ |

1176 and 882 is ____ | 2835 and 1575 is ____ | 12005 and 19208 is ____ | 480 and 420 is ____ | 630 and 756 is ____ |

4200 and 3675 is ____ | 1512 and 1134 is ____ | 8575 and 9800 is ____ | 216 and 180 is ____ | 162 and 324 is ____ |

980 and 560 is ____ | 756 and 672 is ____ | 630 and 2520 is ____ | 8575 and 15435 is ____ | 200 and 300 is ____ |

810 and 405 is ____ | 360 and 270 is ____ | 200 and 160 is ____ | 1125 and 1350 is ____ | 630 and 840 is ____ |

1680 and 1890 is ____ | 1260 and 2520 is ____ | 9800 and 8575 is ____ | 450 and 270 is ____ | 756 and 882 is ____ |

1470 and 882 is ____ | 700 and 600 is ____ | 7350 and 6615 is ____ | 1050 and 840 is ____ | 300 and 540 is ____ |

720 and 450 is ____ | 630 and 420 is ____ | 112 and 392 is ____ | 1764 and 2646 is ____ | 980 and 3920 is ____ |

810 and 180 is ____ | 5880 and 3675 is ____ | 162 and 270 is ____ | 1050 and 1470 is ____ | 432 and 378 is ____ |

1125 and 1500 is ____ | 120 and 96 is ____ | 4116 and 3430 is ____ | 560 and 420 is ____ | 1470 and 1680 is ____ |

840 and 1260 is ____ | 1575 and 1260 is ____ | 3920 and 4410 is ____ | 168 and 756 is ____ | 750 and 1200 is ____ |

420 and 1260 is ____ | 360 and 480 is ____ | 945 and 630 is ____ | 1260 and 2835 is ____ | 1568 and 784 is ____ |

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

189 and 525 is ____ | 60 and 168 is ____ | 56 and 504 is ____ | 90 and 160 is ____ | 375 and 210 is ____ |

84 and 1536 is ____ | 490 and 2016 is ____ | 294 and 160 is ____ | 40 and 720 is ____ | 24 and 896 is ____ |

60 and 1792 is ____ | 36 and 1152 is ____ | 686 and 392 is ____ | 350 and 480 is ____ | 54 and 420 is ____ |

225 and 288 is ____ | 56 and 216 is ____ | 126 and 672 is ____ | 24 and 224 is ____ | 140 and 800 is ____ |

140 and 300 is ____ | 1225 and 224 is ____ | 150 and 840 is ____ | 140 and 420 is ____ | 315 and 240 is ____ |

90 and 1200 is ____ | 210 and 750 is ____ | 350 and 1440 is ____ | 350 and 240 is ____ | 90 and 216 is ____ |

315 and 504 is ____ | 210 and 896 is ____ | 735 and 2688 is ____ | 875 and 1050 is ____ | 60 and 2058 is ____ |

225 and 840 is ____ | 315 and 60 is ____ | 16 and 630 is ____ | 525 and 252 is ____ | 60 and 756 is ____ |

84 and 384 is ____ | 1225 and 864 is ____ | 1715 and 480 is ____ | 150 and 1344 is ____ | 735 and 840 is ____ |

294 and 480 is ____ | 126 and 300 is ____ | 315 and 168 is ____ | 90 and 192 is ____ | 210 and 576 is ____ |

875 and 240 is ____ | 315 and 490 is ____ | 525 and 3072 is ____ | 56 and 630 is ____ | 294 and 480 is ____ |

225 and 672 is ____ | 150 and 225 is ____ | 140 and 180 is ____ | 210 and 875 is ____ | 90 and 180 is ____ |

84 and 288 is ____ | 735 and 600 is ____ | 350 and 504 is ____ | 150 and 108 is ____ | 490 and 144 is ____ |

140 and 128 is ____ | 90 and 672 is ____ | 84 and 360 is ____ | 315 and 96 is ____ | 225 and 864 is ____ |

100 and 525 is ____ | 90 and 588 is ____ | 84 and 180 is ____ | 1225 and 60 is ____ | 490 and 320 is ____ |

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