**Created By :**
Jatin Gogia

**Reviewed By :**
Rajasekhar Valipishetty

**Last Updated :**
Apr 06, 2023

HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 18, 99, 48 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 18, 99, 48 is 3 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.

Consider we have numbers 18, 99, 48 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b

Highest common factor (HCF) of 18, 99, 48 is **3**.

HCF(18, 99, 48) = 3

*Highest common factor* or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

Highest common factor (HCF) of 18, 99, 48 is **3**.

**Step 1:** Since 99 > 18, we apply the division lemma to 99 and 18, to get

99 = 18 x 5 + 9

**Step 2:** Since the reminder 18 ≠ 0, we apply division lemma to 9 and 18, to get

18 = 9 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 18 and 99 is 9

Notice that 9 = HCF(18,9) = HCF(99,18) .

We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

**Step 1:** Since 48 > 9, we apply the division lemma to 48 and 9, to get

48 = 9 x 5 + 3

**Step 2:** Since the reminder 9 ≠ 0, we apply division lemma to 3 and 9, to get

9 = 3 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 9 and 48 is 3

Notice that 3 = HCF(9,3) = HCF(48,9) .

Here are some samples of HCF using Euclid's Algorithm calculations.

1. What is the Euclid division algorithm?

Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.

2. what is the HCF of 18, 99, 48?

Answer: HCF of 18, 99, 48 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 18, 99, 48 using Euclid's Algorithm?

Answer: For arbitrary numbers 18, 99, 48 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.