it is 5
The hcf of 15 and 20 is 5
The GCF is 3.
The GCF is 5.
5
The GCF is 5.
To find the HCF, you first have to express both numbers as the product of their prime factors: 15 = 3x5 20 = 2x2x5 The next step is to identify any common prime factors. In this case both numbers have a 5 as a prime factor. Therefore the HCF of 15 and 20 is 5.
The hcf is 15.
15
The HCF is: 15
The hcf is 4
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! The highest factor of any number is itself.