MathematicsMultiples and Factors (NSTSE (National Science Talent Search Exam Unified Council) 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 
