# Mathematics-Multiples and Factors (NSTSE Class 4): Questions 83 - 91 of 99

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## Question number: 83

» Mathematics » Multiples and Factors

### Question

What is the sum of the least common multiple and highest common factor of the numbers 12 and 18?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 38 | |

b. | 40 | |

c. | 42 | |

d. | 44 |

## Question number: 84

» Mathematics » Multiples and Factors

### Question

Number 1 has only one factor. It is neither prime nor composite. It is called ________ number.

### Choices

Choice (4) | Response | |
---|---|---|

a. | Twin prime | |

b. | Prime | |

c. | Unique | |

d. | Composite |

## Question number: 85

» Mathematics » Multiples and Factors

### Question

Factors of 57: 3 and ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 19 | |

b. | 34 | |

c. | 23 | |

d. | 57 |

## Question number: 86

» Mathematics » Multiples and Factors

### Question

Write the greatest 2-digit number that has and 15 as factors?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 45 | |

b. | 15 | |

c. | 20 | |

d. | 75 |

## Question number: 87

» Mathematics » Multiples and Factors

### Question

The factor of the number shown on the spike abacus is:

### Choices

Choice (4) | Response | |
---|---|---|

a. | 17 | |

b. | 15 | |

c. | 21 | |

d. | 37 |

## Question number: 88

» Mathematics » Multiples and Factors

### Question

What is the least common multiple of the number ?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 32 | |

b. | 24 | |

c. | 36 | |

d. | 48 |

## Question number: 89

» Mathematics » Multiples and Factors

### Question

________ is neither prime not composite number.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 6 | |

b. | 3 | |

c. | 5 | |

d. | 1 |

## Question number: 90

» Mathematics » Multiples and Factors

### Question

A number is divisible by 5, if the digit in the unit’s place of the number is:

### Choices

Choice (4) | Response | |
---|---|---|

a. | Either 0 or 5 | |

b. | 5 | |

c. | 1 | |

d. | 0 |

## Question number: 91

» Mathematics » Multiples and Factors

### Question

________ is a prime number.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 136 | |

b. | 110 | |

c. | 103 | |

d. | 88 |