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CBSE Questions for Class 6 Maths Playing With Numbers Quiz 2 - MCQExams.com

The resultant of "factor × factor ......" is equal to
  • product
  • difference
  • sum
  • quotient
21 and 29 are ______ numbers.
  • prime numbers
  • co-primes
  • multiples of 7
  • even numbers
Number of prime numbers from 1 to 50 are
  • 18
  • 12
  • 15
  • 20
All prime numbers are
  • even numbers
  • odd numbers
  • composite numbers
  • odd numbers except 2
Which of the following numbers are divisible by 2 but not by 4?
  • 28
  • 324
  • 2356
  • 8026
A number which is a factor of every number is
  • 0
  • 1
  • 2
  • none of these
HCF of 24 and 36 is ..............
  • 6
  • 4
  • 9
  • 12
The prime number that comes just after 47 is ......
  • 57
  • 51
  • 53
  • none of these
Choose the co-prime numbers from the following pairs:
  • (11,111)
  • (22,222)
  • (12,36)
  • (14,50)
Which prime number which comes just after 43 ?
  • 49
  • 45
  • 47
  • none of these
Number of prime numbers between 50 to 60 is
  • 1
  • 2
  • 3
  • 4
Every prime number is .......
  • a even number
  • an odd number
  • a composite number
  • none of these
A prime number 
  • has exactly one factor.
  • has exactly two factors.
  • is not divisible by 2.
  • is an odd number.
Which of the following are prime numbers?
  • 137
  • 143
  • 396
  • Both A and B
The numbers which are multiples of 2 are called
  • odd
  • prime
  • composite
  • none of these
Number of prime numbers between 50 to 60 is 
  • 1
  • 2
  • 3
  • 4
Which is the least prime number ?
  • 1
  • 0
  • 2
  • 3
HCF  of two co-prime numbers is 
  • 1
  • 0
  • 2
  • None of these
If the HCF of two numbers is 1, then they are called as ?
  • Co-primes
  • Composite numbers
  • Prime numbers
  • Twin primes
Identify prime numbers among the following options.
  • 2
  • 5
  • 6
  • 8
Choose the co-prime numbers from the following pairs
  • 7 and 63
  • 39 and 25
  • 35 and 21
  • 63 and 81
The number which is neither prime nor composite is
  • 0
  • 1
  • 2
  • 5
If a number is divisible by 9, then it is also divisible by which number?
  • 3
  • 6
  • 2
  • None of these
Which of the following numbers are not divisible by 5?
30,49,75,210,305
  • 30
  • 49
  • 75
  • 210
Which of the following numbers are not divisible by 3?
42,73,84,105,314
  • 42
  • 73
  • 84
  • 314
By Goldbach's conjecture, every even number greater than 4 can be expressed as a sum of
  • Two even numbers
  • Two odd prime numbers
  • Two composite numbers
  • Two co-prime numbers
How many prime numbers are there between 10 and 30?
  • 6
  • 5
  • 7
  • 8
How many factors does the  number 24 has ?
  • 2  factors
  • 4  factors
  • 6  factors
  • 8  factors
Which of the following numbers are not divisible by 2?
57,34,60,93,126
  • 57
  • 34
  • 93
  • 126
Which of the following numbers are not divisible by 9?
36,90,157,243,514
  • 36
  • 90
  • 157
  • 243
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