What is the HCF of 12 and 15?
Highest Common Factor of two or more numbers is the largest possible number which divides the given numbers exactly.
Answer: HCF of 12 and 15 is 3
We can find the HCF by the following methods
Methods to Find HCF of 12 and 15
- Listing the common factors method
- Long division Method
Method 1: HCF of 12 and 15 by Long Division
- Step 1: Divide 15 by 12 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 remainder as 0
Method 2: HCF of 12 and 15 by Listing the Common Factors
Common Factors of 12 and 15: 3
The greatest common factor is 3
HCF of 12 and 15 is 3