It is: 7
The first step when finding an HCF is to break the numbers down into their prime factors. In this case we get: 21 = 3x7 49 = 7x7 The next step is to identify any common prime factors. In this case both numbers have a 7 as a prime factor. There are no more common prime factors, and thus the HCF of 21 and 49 is 7.
7
If you mean 28, 49 and 84 then the hcf is 7
7
The GCF is 7.
It is: 7
If you mean: 21, 49 and 84 then the HCF is 7
49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
The GCF of 21, 49, and 84 is 7.
The first step when finding an HCF is to break the numbers down into their prime factors. In this case we get: 21 = 3x7 49 = 7x7 The next step is to identify any common prime factors. In this case both numbers have a 7 as a prime factor. There are no more common prime factors, and thus the HCF of 21 and 49 is 7.
The GCF is 7.It is: 7
7
If you mean 28, 49 and 84 then the hcf is 7
the answer is 49
7
It is 49