ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Factors and Multiples
Question 1
1.
    • Find the prime factorization of
    • 240
  • (-1) 4
     
    		✕
    3
    		✕
    5
  • 2 4
     
    		✕
    6
    		✕
    5
  • 2 4
     
    		✕
    3
    		✕
    5 2
     
  • 2 4
     
    		✕
    3
    		✕
    5
  • 2 4
     
    		✕
    3
    		✕
    4
Question 2
2.
    • Find the LCM of
    • {8,10,15,18}
  • 361
  • 362
  • 359
  • 360
  • 357
Question 3
3.
    • Find the total number of factors of
    • 12168
  • 37
  • 35
  • 36
  • 39
  • 33
Question 4
4.
    • Find the HCF of
    • {780,300,100}
  • 19
  • 17
  • 22
  • 20
  • 21
Question 5
5.
    • Find the HCF of
    • {1080,660}
  • 60
  • 62
  • 59
  • 57
  • 61
Question 6
6.
    • Find the product of LCM and HCF of
    • {21,24,27,28}
  • 1509
  • 1514
  • 1512
  • 1513
  • 1511
Question 7
7.
Find all common factors of 50 , 18 and 16
  • {1,3}
  • {1,50}
  • {1,2}
  • {1,2,9}
  • {1,2,10}
Question 8
8.
    • Find the number of prime factors of
    • 93
  • 4
  • 2
  • 3
  • 0
  • 1
Question 9
9.
    • Find the LCM of
    • {72,120,64,24}
  • 2879
  • 2881
  • 2877
  • 2880
  • 2882
Question 10
10.
    • Find the prime factorization of
    • 15
  • 3 -2
     
    		✕
    5
  • 3 2
     
    		✕
    5
  • 2
    		✕
    5
  • 3
    		✕
    5
  • 6
    		✕
    5