Mathematics-Multiples and Factors (NSTSE (National Science Talent Search Exam- Unified Council) Class 4): Questions 78 - 85 of 99

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1791 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 78

» Mathematics » Multiples and Factors

MCQ▾

Question

The greatest prime number less than 240 is:

Choices

Choice (4) Response

a.

233

b.

237

c.

239

d.

241

Question number: 79

» Mathematics » Multiples and Factors

MCQ▾

Question

A number is divisible by 9, if the sum of its digits is divisible by:

Choices

Choice (4) Response

a.

9

b.

0

c.

7

d.

Question does not provide sufficient data or is vague

Question number: 80

» Mathematics » Multiples and Factors

MCQ▾

Question

LCM of 12,18 is:

Choices

Choice (4) Response

a.

72

b.

36

c.

54

d.

48

Question number: 81

» Mathematics » Multiples and Factors

MCQ▾

Question

________ is composite number.

Choices

Choice (4) Response

a.

23

b.

19

c.

12

d.

17

Question number: 82

» Mathematics » Multiples and Factors

MCQ▾

Question

The number 10 has 4 factors. The table below lists the number of factors for some numbers. (Model Test Paper)

This table represent the number with their factors

Find the number of prime numbers between 10 and 20

Number

Number of factors

11

2

13

2

15

4

17

2

19

2

From this we can say that the number of prime numbers between 10 and 20 is:

Choices

Choice (4) Response

a.

4

b.

Can’t say

c.

0

d.

2

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

f Page
Sign In