MathematicsMultiples and Factors (NSTSE Class 4): Questions 1  6 of 99
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Question number: 1
» Mathematics » Multiples and Factors
Question
The number 12 has six factors: . The table below lists the number of factors for some numbers.
Number

Number of factors

41

2

43

2

45

6

47

2

49

3 
From this we can say that the number of prime numbers between 40 and 50 is:
Choices
Choice (4)  Response  

a.  0  
b.  3  
c.  4  
d.  1 
Question number: 2
» Mathematics » Multiples and Factors
Question
LCM stands for:
Choices
Choice (4)  Response  

a.  Less common multiply  
b.  Least common multiplier  
c.  Least common multiple  
d.  All of the above 
Question number: 3
» Mathematics » Multiples and Factors
Question
Out of the composite number is:
Choices
Choice (4)  Response  

a.  23  
b.  37  
c.  31  
d.  27 
Question number: 4
» Mathematics » Multiples and Factors
Question
Difference between the least common factor and the least common multiple of the number shown on the spike abacus is:
Choices
Choice (4)  Response  

a.  12  
b.  8  
c.  6  
d.  10 
Question number: 5
» Mathematics » Multiples and Factors
Question
41 has only two factors: 1 and ________.
Choices
Choice (4)  Response  

a.  21  
b.  41  
c.  24  
d.  0 
Question number: 6
» Mathematics » Multiples and Factors
Question
Find the sum of least prime number and the least composite number.
Choices
Choice (4)  Response  

a.  10  
b.  44  
c.  29  
d.  50 