# Playing With Numbers (IMO- Mathematics Olympiad (SOF) Class 6): Questions 19 - 26 of 86

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## Question number: 19

» Playing With Numbers

MCQ▾

### Question

Prime factorization of 5775 is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 20

» Playing With Numbers

MCQ▾

### Question

The numbers which have only two factors (1 and the number itself) are called as

### Choices

Choice (4) Response

a.

Prime

b.

Composite

c.

Even

d.

All of the above

## Question number: 21

» Playing With Numbers

MCQ▾

### Question

There are 153 apples and 119 oranges. These fruits are to be arranged in heaps containing the same number of fruits. Then the greatest number of fruits possible in each heap is

### Choices

Choice (4) Response

a.

20

b.

15

c.

23

d.

17

## Question number: 22

» Playing With Numbers

MCQ▾

### Question

Number of prime numbers from 1 to 50 are

### Choices

Choice (4) Response

a.

12

b.

18

c.

15

d.

20

## Question number: 23

» Playing With Numbers

MCQ▾

### Question

The HCF and LCM of two numbers is 16 and 192 respectively. If one of the numbers is 64, the other one is

### Choices

Choice (4) Response

a.

45

b.

24

c.

72

d.

48

## Question number: 24

» Playing With Numbers

MCQ▾

is divisible by

### Choices

Choice (4) Response

a.

2

b.

3

c.

9

d.

10

## Question number: 25

» Playing With Numbers

MCQ▾

### Question

The HCF two numbers is 18. If one of the numbers is 90 and another is 36, then their LCM is

### Choices

Choice (4) Response

a.

180

b.

165

c.

170

d.

155

## Question number: 26

» Playing With Numbers

MCQ▾

### Question

The LCM of two numbers is 138. If one of the numbers is 46 and another is 69, then the HCF is

### Choices

Choice (4) Response

a.

23

b.

13

c.

28

d.

29

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