The GCF is 18.
The GCF/HCF of 54 and 504 is 18.
It is: 18
The HCF is 18
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54 The factors of 81 are: 1, 3, 9, 27, 81
The GCF is 18.
The GCF/HCF of 54 and 504 is 18.
It is: 18
18
The HCF is 18
It is: 9
18/81 = 2/9 (divide top and bottom by the hcf of 18 & 81 = 9)
LCM(18, 54, 81) = 162
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
Oh, isn't that a lovely question! To find the highest common factor (HCF) of 9, 54, and 18, we first look at the factors of each number. The factors of 9 are 1, 3, and 9; the factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54; and the factors of 18 are 1, 2, 3, 6, 9, and 18. The largest number that appears in the factors of all three numbers is 9, so the HCF of 9, 54, and 18 is 9. Isn't that just a happy little number to find?
The greatest common factor of 54 and 90 is 18.
No, 18 is not a factor of 81.