1. Write all the factors of the following numbers :
Answer:
2. Write first five multiples of :
Solution :
3. Match the items in column 1 with the items in column 2.
Answer:
(a) 24  (b) 15  (c) 21 
(d) 27  (e) 12  (f) 20 
(g) 18  (h) 23  (i) 36 
(a) 24  
Thus, the factors of 24 are 1, 2,3, 4, 6, 8, 12 and 24.  
(b) 15 

Thus, the factors of 15 are 1, 3, 5, and 15.  
(c) 21 

Thus, the factors of 21 are 1, 3,7 and 21.  
(d) 27 

Thus, the factors of 27 are 1, 3,9 and 27.  
(e) 12 

Thus, the factors of 12 are 1, 2, 3, 4, 6 and 12.  
(f) 20 

Thus, the factors of 20 are 1, 2, 4, 5, 10 and 20.  
(g) 18 

Thus, the factors of 18 are 1, 2, 3, 6 and 18.  
(h) 23 

Thus, the factors of 23 are 1 and 20.  
(h) 36 

Thus, the factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36 
(a) 5  (b) 8  (c) 9 
(a) 5 

Thus, The required first five multiples of 5 are 5, 10, 15, 20 and 25.  
(b) 8 

Thus, The required first five multiples of 5 are 8, 16, 24, 32 and 40.  
(c) 9 

Thus, The required first five multiples of 5 are 9, 18, 27, 36 and 45. 
Column 1  Column 2 


Column 1  Column 2 
 (b) Multiple of 7 (d) Factor of 30 (a) Multiple of 8 (f) Factor of 20 (e) Factor of 50 
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