The GCF is 1.
The greatest common factor (usually abbreviated GCF) of 15, 35, and 20, is 5.
The GCF is 5.
The GCF is 5.
it is 5
The hcf of 15 and 20 is 5
The GCF is 5.
The GCF is 25.
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.
5 (leaves you with 2, 4 and 7)
The hcf is 15.