ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Factors and Multiples
Question 1
1.
The factors of 47 =
  • {1,46}
  • {1,47}
  • {1,47,2,46}
  • {46,2}
  • {1,47,2}
Question 2
2.
    • Find the total number of factors of
    • 62
  • 5
  • 4
  • 7
  • 2
  • 3
Question 3
3.
    • Find the prime factorization of
    • 78
  • 2
    		✕
    2
    		✕
    13
  • 2
    		✕
    3
    		✕
    13
  • 2
    		✕
    5
    		✕
    13
  • 2
    		✕
    3 -1
     
    		✕
    13
  • 2 2
     
    		✕
    3
    		✕
    13
Question 4
4.
Find all common factors of 13 and 7
  • {1,7}
  • {13}
  • {7}
  • {1}
  • {1,13}
Question 5
5.
    • Find the HCF of
    • {270,480}
  • 30
  • 29
  • 33
  • 31
  • 28
Question 6
6.
    • Find the HCF of
    • {304,224}
  • 15
  • 16
  • 18
  • 14
  • 17
Question 7
7.
    • Find the HCF of
    • {6,16}
  • 5
  • 3
  • (-1)
  • 2
  • 1
Question 8
8.
The multiples of 13 =
  • {13,26,39,52,78,53}
  • {13,26,39,52,40,64}
  • {13,26,39,52,65,78}
  • {13,26,39,52,65,78,64}
  • {13,26,39,52,65,78,14,77}
Question 9
9.
    • The simplest form of the fraction
    • 57
      95
    • is
  • 1
    5
  • 3
    7
  • 1
  • 3
    5
Question 10
10.
    • Find the HCF of
    • {680,160,200}
  • 39
  • 42
  • 41
  • 40
  • 38