# Mathematics-Factors and Multiples (NSTSE (National Science Talent Search Exam- Unified Council) Class 5): Questions 25 - 34 of 84

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## Question number: 25

» Mathematics » Factors and Multiples

MCQ▾

### Question

What is the H. C. F. of 46 and 64?

### Choices

Choice (4) Response

a.

6

b.

8

c.

2

d.

23

## Question number: 26

» Mathematics » Factors and Multiples

MCQ▾

### Question

Find the L. C. M of 36 and 54 using prime factorisation method.

### Choices

Choice (4) Response

a.

27

b.

98

c.

50

d.

108

## Question number: 27

» Mathematics » Factors and Multiples

MCQ▾

### Question

Which of the following is NOT a pair of twin primes? (Model Test Paper)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 28

» Mathematics » Factors and Multiples

MCQ▾

### Question

What is the H. C. F. of 90 and 175?

### Choices

Choice (4) Response

a.

20

b.

5

c.

35

d.

15

## Question number: 29

» Mathematics » Factors and Multiples

MCQ▾

### Question

What are the common factors of 36 and 72?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 30

» Mathematics » Factors and Multiples

MCQ▾

### Question

Identify an example for co-prime numbers.

### Choices

Choice (4) Response

a.

18,37

b.

8,10

c.

16,26

d.

12,15

## Question number: 31

» Mathematics » Factors and Multiples

MCQ▾

### Question

What is the sum of the numbers that are multiples of 6 as well as factors of 36?

### Choices

Choice (4) Response

a.

68

b.

56

c.

72

d.

36

## Question number: 32

» Mathematics » Factors and Multiples

MCQ▾

### Question

Find the smallest whole number that is divisible by 12 and 18.

### Choices

Choice (4) Response

a.

54

b.

36

c.

60

d.

72

## Question number: 33

» Mathematics » Factors and Multiples

MCQ▾

### Question

Which of these numbers has 2,11,22 and 97 as factors?

### Choices

Choice (4) Response

a.

2321

b.

1122

c.

2134

d.

4300

## Question number: 34

» Mathematics » Factors and Multiples

MCQ▾

### Question

Identify the numbers which have only 1 and itself as factors.

### Choices

Choice (4) Response

a.

Composite numbers

b.

Co-prime numbers

c.

Twin prime

d.

Prime numbers

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