What are the common factors of 75, 60 and 90?
A) 1, 2, 3, 5 and 6
B) 1, 3, 5 and 10
C) 1, 2, 5 and 7
D) 1, 3, 5 and 15
Given Numbers :
75, 60, 90
To do:
We have to find the common factors of 75, 60, 90.
Solution :
Factors of 75 - 1 , 3 , 5 , 15 , 25 , 75
Factors of 60 - 1 , 2 , 3 , 4 , 5 , 6 , 10 , 12 , 15 , 20 , 30 , 60
Factors of 90 - 1 , 2 , 3 , 5 , 6 , 9 , 10 , 15 , 18, 30 , 45 , 90
Choose the common factors,
1, 3, 5, 15
The common factors of 75 , 60 , 90 are 1 , 3 , 5 , 15.
So, option D is correct.
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