What is the HCF of 3 and 7?
The largest possible number which divides the given numbers exactly without any remainder is called the HCF (Highest Common Factor).
Answer: HCF of 3 and 7 is 1
HCF of 3 and 7 is the highest number that divides 3 and 7 exactly leaving the remainder 0.
We can find the HCF by the following methods.
- HCF of 3 and 7 by Listing Common Factors
- HCF of 3 and 7 by Long Division
Method 1: Find HCF of 3 and 7 by Listing Common Factors
Factors of 3: 1, 3
Factors of 7: 1, 7
The common factor of 3 and 7 is 1
HCF is the product of the factors that are common to each of the given numbers.
So, HCF of 3 and 7 is 1
Method 2: Find HCF of 3 and 7 by Long Division
The steps to find the HCF(3, 7) by long division are mentioned below.
Step 1: Divide 7 by 3 and check the remainder. We get remainder 1.
Step 2: Make the remainder of the above step 1 as the divisor and the divisor of the above step 3 as the dividend and perform the long division again.
Step 3: Continue till you get the remainder as 0 and the last divisor is the HCF of 3 and 7
The highest common factor of 3 and 7 is 1
You can find the HCF in any of the above methods but the solution will be the same.