Write down all the factors of the following: (i) 20 (ii) 36 (iii) 60 iv) 75
Given :
The given numbers are 20, 36, 60, 75.
To do :
We have to find the factors of the given numbers.
Solution :
Factor:
If a number (dividend) is exactly divisible by any number (divisor), then the divisor is a factor of that dividend.
Every number has a common factor that is one and the number itself.
(i) 20
$20 = 1\times20 = 2\times10 = 4\times5$
Factors of 20 are 1,2,4,5,10 and 20.
(ii) 36
$36 = 1\times36 =2\times18 = 3\times12 = 4\times9 = 6\times6$
Factors of 36 are 1,2,3,4,6,9,12,18 and 36.
(iii) 60
$60 = 1\times60 = 2\times 30 = 3\times 20 = 4\times 15 = 5\times 12 = 6\times 10$
Factors of 60 are 1,2,3,4,5,6,10,12,15,20,30 and 60.
(iv) 75
$75 = 1\times 75 = 3\times 25 = 5\times 15$
Factors of 75 are 1,3,5,15,25 and 75.
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