ICSE Board Practice

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ICSE Grade VIII - Factors and Multiples
Question 1
1.
    • Find the HCF of
    • {114,150,246,36}
  • 5
  • 9
  • 4
  • 6
  • 7
Question 2
2.
The factors of 22 =
  • {1,11,22,3}
  • {1,11,21,2}
  • {1,2,11,22}
  • {1,2,11,22,3,21}
Question 3
3.
Find the smallest perfect square which is divisible by each of the numbers 15,6,14
  • 88200
  • 1261
  • 3150
  • 44102
  • 44100
Question 4
4.
    • What is the number that divides
    • {5311,1027,2539}
    • leaving a remainder of
    • 19
  • 253
  • 251
  • 252
  • 254
  • 250
Question 5
5.
The multiples of 17 =
  • {17,34,51,68,85,69}
  • {17,34,51,68,85,102,52,69}
  • {17,34,51,68,85,102,84}
  • {17,34,68,85,69,35}
  • {17,34,51,68,85,102}
Question 6
6.
    • Find the L.C.M of
    • 35
      30
      ,
      28
      25
      ,
      44
      20
  • 308
  • 1542
    5
  • 1538
    5
  • 1540
    3
  • 220
Question 7
7.
Which of the following numbers is divisible by 8?
  • 6778
  • 6776
  • 6777
  • 6775
  • 6774
Question 8
8.
The factors of 27 =
  • {1,3,9,27}
  • {1,27,26,4}
  • {1,3,9,27,2,8}
  • {1,3,27,8}
  • {1,3,9,27,2}
Question 9
9.
    • Find the prime factorization of
    • 6
  • 2
    		✕
    6
  • 2 -2
     
    		✕
    3
  • 2
    		✕
    2
  • 2
    		✕
    3 2
     
  • 2
    		✕
    3
Question 10
10.
    • Find the number of prime factors of
    • 66
  • 1
  • 0
  • 2
  • 3
  • 4