Find the common factors of 45,60 and 105.
We know that,
Factors of 45 are 1,3,5,9,15,and45.
Factors of 60 are 1,2,3,4,5,6,10,12,15,20,30,and 60.
Factors of 105 are 1,3,5,7,15,21,35, and 105.
Hence, Common Factors of 45,60 and 105 will be 1,3,5, and 15.
The number of common prime factors of 75,60,105 is
find the common factors of 75and 60