How many positive factors do 120 and 80 have in common?  Choose the correct option.
A) 8
B) 12
C) 16
D) 18
E) 24
The number of common factors will be same as number of factors of the Highest Common Factor(HCF)   HCF of 120 and 80 is 40   Number of factors of 40 = 8   8nswer :8
<result>A</result>
How many positive factors do 120 and 80 have in common?