MathematicsMultiples and Factors (NSTSE (National Level Science Talent Search Examination) Class 4): Questions 55  62 of 99
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Question number: 55
» Mathematics » Multiples and Factors
Question
A number which when divided by 2, leaves one as remainder, is ________ number.
Choices
Choice (4)  Response  

a.  Prime 

b.  Odd 

c.  Twin prime 

d.  Even 

Question number: 56
» Mathematics » Multiples and Factors
Question
Write the least 2digit number that has as factors?
Choices
Choice (4)  Response  

a.  56 

b.  48 

c.  34 

d.  50 

Question number: 57
» Mathematics » Multiples and Factors
Question
Numbers which have only two factors are called ________ numbers.
Choices
Choice (4)  Response  

a.  Twin prime 

b.  Prime 

c.  Composite 

d.  Even 

Question number: 58
» Mathematics » Multiples and Factors
Question
________ should be added to 345 to make it divisible by 10.
Choices
Choice (4)  Response  

a.  3 

b.  5 

c.  0 

d.  6 

Question number: 59
» Mathematics » Multiples and Factors
Question
Sum of the odd numbers between 5 and 12 is: (Model Test Paper)
Choices
Choice (4)  Response  

a.  7 

b.  16 

c.  17 

d.  27 

Question number: 60
» Mathematics » Multiples and Factors
Question
What is the difference between the least common multiple and highest common factor of the numbers 6 and 15?
Choices
Choice (4)  Response  

a.  31 

b.  25 

c.  27 

d.  30 

Question number: 61
» Mathematics » Multiples and Factors
Question
The number 14 has four factors: . The table below lists the number of factors for some numbers.
Number

Number of factors

21

4

23

2

25

3

27

4

29

2 
From this we can say that the number of composite numbers between 20 and 30 is:
Choices
Choice (4)  Response  

a.  3 

b.  2 

c.  4 

d.  0 

Question number: 62
» Mathematics » Multiples and Factors
Question
Out of the prime number is:
Choices
Choice (4)  Response  

a.  64 

b.  66 

c.  65 

d.  67 
