It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
'5' The HCF (High Common Factor) can be found by dividing each number by its prime factors. Hence 15 = 3, 5. 25 = 5,5 '5' is common to both '15' & '25' , so it is the hcf.
HCF(15, 25) = 5.Therefore, 15/25 = 3/5.
The GCF is 25.
The GCF is 25.
The GCF is 25.
15 and 25
The HCF of 25 and 50 is... 25.
5 and 75 15 and 25
25
The HCF is 5.
The GCF is 1.
The GCF is 15.