You need at least two numbers to find a GCF.
The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The highest factor of any number is itself.
It is: 9
The GCF/HCF of 486 and 405 is 81.
hcf = 4 and lcm = 420
The HCF of the given three numbers is 9 and because the digital sum of the given numbers equals 9 then the numbers are all divisible by 9
The hcf is 12
81
It is: 81 which is the HCF
It is: 27
It is: 9
hcf(18, 54, 81) = 9. Using prime factorization: 18 = 2 x 3^2 54 = 2 x 3^3 81 = 3^4 hcf = 3^2 = 9
The GCF is 27.
The GCF is 1.
27.
HCF is 3
The GCF is 1.
1296 and 3 respectively.
The hcf is 9