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: | ||||

1134 and 945 is ____ | 168 and 504 is ____ | 5145 and 4410 is ____ | 945 and 2205 is ____ | 2205 and 2520 is ____ |

420 and 840 is ____ | 784 and 1568 is ____ | 4410 and 3675 is ____ | 840 and 630 is ____ | 420 and 980 is ____ |

500 and 300 is ____ | 300 and 750 is ____ | 1470 and 6615 is ____ | 840 and 980 is ____ | 2625 and 4200 is ____ |

240 and 540 is ____ | 1050 and 2450 is ____ | 1134 and 1008 is ____ | 600 and 900 is ____ | 882 and 756 is ____ |

980 and 2450 is ____ | 450 and 1350 is ____ | 3528 and 2646 is ____ | 243 and 729 is ____ | 168 and 756 is ____ |

270 and 216 is ____ | 480 and 420 is ____ | 240 and 180 is ____ | 3500 and 2625 is ____ | 1764 and 1372 is ____ |

1890 and 1260 is ____ | 2100 and 2450 is ____ | 450 and 810 is ____ | 840 and 1050 is ____ | 3920 and 980 is ____ |

810 and 720 is ____ | 420 and 672 is ____ | 4900 and 11025 is ____ | 420 and 280 is ____ | 756 and 588 is ____ |

280 and 560 is ____ | 120 and 180 is ____ | 1350 and 1200 is ____ | 300 and 420 is ____ | 1008 and 504 is ____ |

1050 and 1400 is ____ | 2450 and 4410 is ____ | 630 and 2520 is ____ | 1470 and 1680 is ____ | 588 and 882 is ____ |

1260 and 1575 is ____ | 810 and 405 is ____ | 360 and 420 is ____ | 420 and 1680 is ____ | 1200 and 1050 is ____ |

3430 and 4410 is ____ | 4410 and 3675 is ____ | 120 and 180 is ____ | 1008 and 882 is ____ | 270 and 540 is ____ |

1120 and 980 is ____ | 630 and 1050 is ____ | 900 and 750 is ____ | 1050 and 2625 is ____ | 64 and 128 is ____ |

3675 and 5880 is ____ | 630 and 540 is ____ | 1050 and 1680 is ____ | 4410 and 2450 is ____ | 1500 and 750 is ____ |

2646 and 1764 is ____ | 840 and 756 is ____ | 1890 and 1260 is ____ | 1350 and 1125 is ____ | 4900 and 9800 is ____ |

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

525 and 960 is ____ | 210 and 540 is ____ | 375 and 560 is ____ | 441 and 384 is ____ | 420 and 210 is ____ |

210 and 420 is ____ | 140 and 448 is ____ | 210 and 2240 is ____ | 210 and 768 is ____ | 140 and 288 is ____ |

90 and 256 is ____ | 150 and 144 is ____ | 294 and 432 is ____ | 150 and 36 is ____ | 490 and 672 is ____ |

315 and 1176 is ____ | 294 and 768 is ____ | 56 and 280 is ____ | 150 and 315 is ____ | 100 and 300 is ____ |

210 and 336 is ____ | 350 and 210 is ____ | 54 and 288 is ____ | 210 and 1920 is ____ | 210 and 224 is ____ |

686 and 864 is ____ | 90 and 1120 is ____ | 84 and 252 is ____ | 60 and 84 is ____ | 24 and 420 is ____ |

126 and 225 is ____ | 490 and 300 is ____ | 90 and 1008 is ____ | 210 and 144 is ____ | 189 and 560 is ____ |

84 and 1344 is ____ | 225 and 192 is ____ | 126 and 3584 is ____ | 735 and 225 is ____ | 1715 and 1176 is ____ |

90 and 480 is ____ | 294 and 360 is ____ | 315 and 900 is ____ | 90 and 800 is ____ | 2401 and 420 is ____ |

84 and 240 is ____ | 350 and 672 is ____ | 315 and 180 is ____ | 210 and 360 is ____ | 525 and 768 is ____ |

1225 and 432 is ____ | 1029 and 768 is ____ | 490 and 80 is ____ | 735 and 392 is ____ | 84 and 1176 is ____ |

84 and 448 is ____ | 40 and 180 is ____ | 135 and 3072 is ____ | 525 and 288 is ____ | 84 and 896 is ____ |

100 and 720 is ____ | 189 and 420 is ____ | 490 and 300 is ____ | 441 and 784 is ____ | 315 and 420 is ____ |

294 and 1120 is ____ | 294 and 64 is ____ | 100 and 672 is ____ | 225 and 672 is ____ | 100 and 1176 is ____ |

210 and 96 is ____ | 735 and 216 is ____ | 135 and 768 is ____ | 84 and 196 is ____ | 84 and 144 is ____ |

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