ICSE Board Practice

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ICSE Grade VI - Factors and Multiples
Question 1
1.
The multiples of 18 =
  • {18,36,54,72,108,109}
  • {18,36,54,72,90,108,109}
  • {18,36,54,108,73,109}
  • {18,36,54,72,90,108}
  • {18,36,54,72,90,108,19,35}
Question 2
2.
    • Find the HCF of
    • {18,4}
  • 2
  • (-1)
  • 1
  • 3
  • 4
Question 3
3.
    • Find the HCF of
    • {180,1320,150,1140}
  • 32
  • 30
  • 28
  • 31
  • 29
Question 4
4.
    • Find the LCM of
    • {10,16,18,15}
  • 721
  • 720
  • 722
  • 718
  • 719
Question 5
5.
    • Find the LCM of
    • {4,8}
  • 8
  • 11
  • 7
  • 6
  • 9
Question 6
6.
The factors of 66 =
  • {1,2,3,6,11,22,33,66,4}
  • {1,3,11,22,33,66,4,32}
  • {1,2,3,6,11,22,33,66}
  • {1,2,3,11,22,33,66}
  • {1,2,3,6,11,22,33,66,7,32}
Question 7
7.
    • Find the number of prime factors of
    • 3528
  • 4
  • 1
  • 2
  • 0
  • 3
Question 8
8.
    • Find the total number of factors of
    • 27
  • 4
  • 7
  • 2
  • 5
  • 3
Question 9
9.
    • Find the prime factorization of
    • 51
  • 3 -1
     
    		✕
    17
  • 3
    		✕
    17
  • 3
    		✕
    16
  • 3 2
     
    		✕
    17
  • 3
    		✕
    20
Question 10
10.
The common multiples of 7 and 5 =
  • {35,70,105,140,41}
  • {35,105,140,175,84}
  • {35,70,105,140,175}
  • {35,70,105,140,232}
  • {70,105,140,175,181}