7
the HCF is 7
The Highest Common Factor (HCF) of 35, 84, and 91 is 7. To find the HCF, you can first find the prime factors of each number: 35 = 5 x 7, 84 = 2^2 x 3 x 7, and 91 = 7 x 13. Then, identify the common prime factors among the numbers, which in this case is 7. Finally, multiply the common prime factors to get the HCF, which is 7.
hcf = 42, lcm = 84.
84
The GCF is 28.
The GCF is 24.
7
The GCF is 2.
The GCF is 7.
The GCF is 35.
If you mean: 21, 49 and 84 then the HCF is 7