The Highest Common Factor (HCF) of 49, 84, and 91 is 7. To find the HCF, you need to factorize each number into its prime factors. The prime factorization of 49 is 7 x 7, 84 is 2 x 2 x 3 x 7, and 91 is 7 x 13. The HCF is the product of the common prime factors raised to the lowest power they appear in any of the numbers, which in this case is 7.
It is: 7
The GCF is 7.
The HCF of 21, 84 and 91 is.... 1 ! The number 91 is a prime number.
7
The GCF is 7.
It is: 1
It is: 7
If you mean: 21, 49 and 84 then the HCF is 7
If you mean 28, 49 and 84 then the hcf is 7
It is 7
It is: 7
7