# Mathematics-Factors and Multiples (NSTSE Class 5): Questions 17 - 24 of 84

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## Question number: 17

» Mathematics » Factors and Multiples

MCQ▾

### Question

How many prime numbers are there from 1 to 50?

### Choices

Choice (4) Response

a.

17

b.

20

c.

15

d.

10

## Question number: 18

» Mathematics » Factors and Multiples

MCQ▾

### Question

The figure given shows 5 numbers. (Model Test Paper)

Which of the 5 numbers are the prime factors of 130?

### Choices

Choice (4) Response

a.

3 and 10

b.

2 and 3

c.

10 and 13

d.

2 and 13

## Question number: 19

» Mathematics » Factors and Multiples

MCQ▾

### Question

Identify an example for twin primes.

### Choices

Choice (4) Response

a.

5, 9

b.

c.

21, 25

d.

13, 15

## Question number: 20

» Mathematics » Factors and Multiples

MCQ▾

### Question

Which of the following numbers which have no common factor except 1?

### Choices

Choice (4) Response

a.

Twin primes

b.

Co-primes

c.

Composite numbers

d.

None of the above

## Question number: 21

» Mathematics » Factors and Multiples

MCQ▾

### Question

How many prime numbers are there from 1 to 100?

### Choices

Choice (4) Response

a.

27

b.

20

c.

15

d.

25

## Question number: 22

» Mathematics » Factors and Multiples

MCQ▾

### Question

Study the numbers given in the box.

Identify the number that is not a divisor of the given numbers.

### Choices

Choice (4) Response

a.

39

b.

14

c.

26

d.

13

## Question number: 23

» Mathematics » Factors and Multiples

MCQ▾

### Question

How many times the H. C. F. of and 77 is their L. C. M. ?

### Choices

Choice (4) Response

a.

44

b.

3630

c.

11

d.

24

## Question number: 24

» Mathematics » Factors and Multiples

MCQ▾

### Question

Which of the following are multiples of 2?

### Choices

Choice (4) Response

a.

Composite number

b.

Odd number

c.

Prime number

d.

Even number

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