# What is the HCF of 12, 16 and 28?

HCF (Highest Common Factor) of 12, 16 and 28 is the greatest possible number which divides 12, 16 and 28 exactly.

## Answer: The HCF of 12, 16 and 28 is 4

Let's calculate their HCF

## Explanation:

### HCF of 12, 16 and 28 by Listing the Common Factors

Factors of 12: 1, 2, 3, 4, 6 and 12

Factors of 16: 1, 2, 4, 8, and 16

Factors of 28: 1, 2, 4, 7, 14, and 28

Common Factors of 12, 16, 24: 1, 2, 4

Since the greatest common factor is 4, the HCF of 12, 16 and 28 is 4

HCF of 12, 16 and 28 is 4

### HCF of 12,16 and 28 by prime factorization.

Let us represent 12,16 and 28 by the product of prime numbers.

HCF (12,16,28) is the product of common prime numbers to all the given 3 numbers.