Mathamatics

 

What is the HCF of 32 and 40

 

the factors of 32 are   1,2,4,8,16 and 32

 

what is the largest of these that also goes into 40?

 

That will be the highest common factor :)

Break them up into their prime factors and take the common ones to get the HCF

 

32  =  2 x 2 x 2 x 2 x 2

40  =  2 x 2 x 2 x 5                 2 x 2 x 2  are common factors = 8