## H.C.F and L.C.M. of Numbers

What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

**Options:**

A. | 196 |

B. | 630 |

C. | 1260 |

D. | 2520 |

**Answer: Option B**

L.C.M. of 12, 18, 21 30 2 | 12 - 18 - 21 - 30 ---------------------------- = 2 x 3 x 2 x 3 x 7 x 5 = 1260. 3 | 6 - 9 - 21 - 15 ---------------------------- Required number = (1260 ÷ 2) | 2 - 3 - 7 - 5 = 630.

Check All H.C.F And L.C.M. Of Numbers Questions (MCQs)

Check All Quantitative Aptitude Questions (MCQs)

## Submit Solution