What is the HCF of 20 and 35?
HCF (Highest Common Factor) of two numbers is the largest possible number which divides the two numbers exactly without any remainder.
Answer: HCF of 20 and 35 is 5
Let us see how to find the HCF of 20 and 35
Explanation:
HCF of 20 and 35 will the highest number that divides 20 and 35 exactly, that is, leaving the remainder 0
Methods to Find HCF of 20 and 35

HCF of 20 and 35 by Prime Factorization
Represent 20 and 35 as a product of its prime factors.
Prime factorization of 20 is 2 × 2 × 5
Prime factorization of 35 is 5 × 7
The common factor in the prime factorization of 20 and 35 is 5
HCF is the product of the factors that are common to each of the given numbers.
Since the common factors are 2 and 3, the HCF of 20 and 35 is 5

HCF of 20 and 35 by Listing the Common Factors
There are two common factors of 20 and 35, that are, 1 and 5
So, HCF of 20 and 35 is 5
You can find the HCF in any of the above methods but the solution will be the same.