myTestBook.com Math Reading Science Practice Test for Grade 1, 2, 3, 4 & 5    
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Grade: 6,    Subject: Math,    Topic: Prime numbers,Twin prime and Composite numbers
Question 1:
What is TRUE about the number 1?

It is a composite numberIt is both a prime and composite number

It is a prime numberIt is neither prime nor a composite number
 
Question 2:
Which are the two prime numbers whose difference is 2?

13 and 157 and 9

3 and 521 and 23
 
Question 3:
Which statement is NOT correct?

'1' is a factor of every number.Every number is a multiple of '1' and itself.

The prime numbers have only two factors.Not every number is a multiple of each of its factors.
 
Question 4:
Which option shows 7 consecutive Composite numbers less than 100?

40-4660-66

70-7690-96
 
Question 5:
If the sum of the digits of a number is divisible by 9, what is true about that number?

It will be divisible by 2.It will be divisible by 4.

It will be divisible by 9.It will be divisible by 6.
 
Question 6:
Which of these is a composite number?

133173

13179
 
Question 7:
The sum of any two odd numbers is ________.

Odd numberPrime number

Even numberBoth, odd and even
 
Question 8:
Every prime number except ____, is odd.

12

43
 
Question 9:
Which option shows a pair of twin primes that is greater than 130 and less than 140?

131 and 133137 and 139

133 and 135130 and 140
 
Question 10:
Which one of the following numbers are coprime numbers?

6 and 159 and 21

18 and 276 and 35
 
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