# Mathematics-Playing With Numbers (NSTSE (National Level Science Talent Search Examination) Class 6): Questions 50 - 58 of 83

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## Question number: 50

» Mathematics » Playing With Numbers

MCQ▾

### Question

The LCM of two numbers is 6444. Which of the following numbers cannot be possibly the HCF of these numbers?

### Choices

Choice (4) Response

a.

14

b.

18

c.

1611

d.

179

## Question number: 51

» Mathematics » Playing With Numbers

MCQ▾

### Question

The greatest number which when divides 304 and 365 leaving remainders 4 and 5 respectively is

### Choices

Choice (4) Response

a.

65

b.

300

c.

60

d.

5

## Question number: 52

» Mathematics » Playing With Numbers

MCQ▾

### Question

A co-prime number is

### Choices

Choice (4) Response

a.

An even number

b.

An odd number

c.

Relatively prime number

d.

Question does not provide sufficient data or is vague

## Question number: 53

» Mathematics » Playing With Numbers

MCQ▾

### Question

Which of the following statement is true?

### Choices

Choice (4) Response

a.

Every prime number is divisible by 1 or itself

b.

1 is smallest prime number

c.

Every prime number is an odd number

d.

All of the above

## Question number: 54

» Mathematics » Playing With Numbers

MCQ▾

### Question

LCM of 48, 12 and 34 is

### Choices

Choice (4) Response

a.

1482

b.

1215

c.

816

d.

1420

## Question number: 55

» Mathematics » Playing With Numbers

MCQ▾

### Question

Common factors of 10 and 15 are

### Choices

Choice (4) Response

a.

1, 5

b.

1, 10, 15

c.

1, 3, 5

d.

None of the above

## Question number: 56

» Mathematics » Playing With Numbers

MCQ▾

### Question

How many prime numbers there are from 5 to 40?

### Choices

Choice (4) Response

a.

9

b.

10

c.

12

d.

11

## Question number: 57

» Mathematics » Playing With Numbers

MCQ▾

### Question

HCF of 24 and 36 is

### Choices

Choice (4) Response

a.

12

b.

11

c.

7

d.

10

## Question number: 58

» Mathematics » Playing With Numbers

MCQ▾

### Question

Three common multiples of 4 and 12

### Choices

Choice (4) Response

a.

12, 32, 22

b.

12, 24, 36

c.

12, 36, 40

d.

12, 45, 36

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