ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Factors and Multiples
Question 1
1.
    • Find the LCM of
    • {140,80,40}
  • 557
  • 561
  • 559
  • 560
  • 563
Question 2
2.
    • Find the HCF of
    • {1320,870,750}
  • 29
  • 31
  • 30
  • 32
  • 28
Question 3
3.
The multiples of 18 =
  • {36,54,72,90,108,107}
  • {18,36,54,90,53,89}
  • {18,36,54,72,90,108}
  • {18,36,54,72,90,108,89}
  • {18,36,54,72,90,108,73,35}
Question 4
4.
    • Find the number of prime factors of
    • 58
  • 4
  • 3
  • 0
  • 1
  • 2
Question 5
5.
The common multiples of 3 and 5 =
  • {15,30,45,60,75,105,120,51}
  • {15,30,45,60,75,105,120,159}
  • {15,45,60,75,90,105,120,82}
  • {15,30,45,60,75,90,105,120}
  • {15,30,60,75,90,105,120,110}
Question 6
6.
Find all common factors of 17 and 13
  • {1,17}
  • {13}
  • {1,13}
  • {17}
  • {1}
Question 7
7.
    • Find the prime factorization of
    • 70
  • 5
    		✕
    5
    		✕
    7
  • 2
    		✕
    5
    		✕
    7
  • 2
    		✕
    5
    		✕
    6
  • 2
    		✕
    5
    		✕
    7 2
     
  • 2
    		✕
    5
    		✕
    4
Question 8
8.
    • Find the total number of factors of
    • 736
  • 14
  • 13
  • 11
  • 12
  • 9
Question 9
9.
    • Find the prime factorization of
    • 9
  • 3 2
     
  • 5 2
     
  • 3
  • 3 3
     
  • 1
Question 10
10.
    • Find the LCM of
    • {6,18,14}
  • 126
  • 127
  • 123
  • 128
  • 125