What is The HCF of 455 and 42?
Highest Common Factor of two numbers is the highest possible number which divides the numbers exactly without any remainder, that is, leaving the remainder 0
Answer: HCF of 455 and 42 is 7
Explanation:
HCF of 455 and 42 by Long Division
Step 1: Divide 455 by 42 and check the remainder.
Step 2: Make the remainder of the above step as the divisor and the divisor of the above step as the dividend and perform the long division again.
Step 3: Continue till you get the remainder as 0 and the last divisor of the division process will be the highest common factor of 455 and 42

HCF of 455 and 42 by Listing the Common Factors
There are two common factors of 455 and 42, that are, 1 and 7
So, HCF of 455 and 42 is 7
You can find the HCF in any of the above methods but the solution will be the same.