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.
Wiki User
∙ 2012-02-26 21:55:56Anonymous
Anonymous
5
Ruqaiyyah Husman
Anonymous
2and5
Anonymous
das
The GCF is 5.
The GCF is 5.
The hcf is 15.
HCF is the highest common factor of two or more numbers. HCF of 20 and 200 is 20.
HCF is the highest common factor of two or more numbers. HCF of 9 and 15 is 3.
The GCF is 5.
it is 5
It is: 5
The hcf of 15 and 20 is 5
The GCF is 5.
It is: 5
5
The GCF is 5.
The GCF is 5.
The GCF is 5.
The hcf is 15.
The greatest common factor (usually abbreviated GCF) of 15, 35, and 20, is 5.