answersLogoWhite

0


Best Answer

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

User Avatar

Wiki User

6y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the hcf of 18 54 81 please give solution also?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the HCF of 225 and 105?

It is not possible to give a sensible answer to this question. 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!


Can the HCF of two numbers be a factor of their LCM?

The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.


What is the HCF of 4375?

Please restate your problem. When dealing with factors you usually have to compare two or more numbers.


What is the HCF of 18?

It is not possible to give a sensible answer to this question. 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!


How do you know if a word problem is HCF or LCM?

The context of the question will determine which it is. Also, if you expect the answer to be bigger than the numbers then it is the LCM else the HCF.


What is the LCM of 6and 34?

To work this out, you first have to give the numbers as their prime factors: 6 = 2x3 34 = 2x17 The next step is to identify the HCF. In this case, the HCF is 2. Finally, you multiply the numbers together and divide by the HCF: 6x34/2 = 102


What does HCF stand for in math?

HCF stands for Highest Common Factor. It is also known as the GCF, or Greatest Common Factor.


How do you find sets of two numbers if HCF and LCM are known?

You cannot. The numbers 2 and 12 have hcf = 2 and LCM = 12 The numbers 4 and 6 also have hcf = 2 and LCM = 12 So if you just knew the hcf and LCM you would not know which of the two was the required pair.


What is the HCF of 680?

To have a HCF, you need at least 2 numbers. There is no HCF in just 1 number.


If d is the H.C.F. of 5672 find x y satisfying d56x 72y Also show that x y are not unique?

It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. The HCF in the question refers to only one number: 5672.


What is the highest common factor of 56 154 and 168?

The GCF is 14.


What is HCF of two consecutive even numbers?

2 actually it also can be 4