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

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## Question number: 83

» Mathematics » Multiples and Factors

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### Question

________ is a prime number.

### Choices

Choice (4) Response

a.

136

b.

110

c.

103

d.

88

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