Highest Common Factor of 615, 826, 638 using Euclid's algorithm

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 615, 826, 638 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 615, 826, 638 is 1 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 615, 826, 638 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 615, 826, 638 is 1.

HCF(615, 826, 638) = 1

HCF of 615, 826, 638 using Euclid's algorithm

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

HCF of:

Highest common factor (HCF) of 615, 826, 638 is 1.

Highest Common Factor of 615,826,638 using Euclid's algorithm

Highest Common Factor of 615,826,638 is 1

Step 1: Since 826 > 615, we apply the division lemma to 826 and 615, to get

826 = 615 x 1 + 211

Step 2: Since the reminder 615 ≠ 0, we apply division lemma to 211 and 615, to get

615 = 211 x 2 + 193

Step 3: We consider the new divisor 211 and the new remainder 193, and apply the division lemma to get

211 = 193 x 1 + 18

We consider the new divisor 193 and the new remainder 18,and apply the division lemma to get

193 = 18 x 10 + 13

We consider the new divisor 18 and the new remainder 13,and apply the division lemma to get

18 = 13 x 1 + 5

We consider the new divisor 13 and the new remainder 5,and apply the division lemma to get

13 = 5 x 2 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 615 and 826 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(13,5) = HCF(18,13) = HCF(193,18) = HCF(211,193) = HCF(615,211) = HCF(826,615) .

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

Step 1: Since 638 > 1, we apply the division lemma to 638 and 1, to get

638 = 1 x 638 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 638 is 1

Notice that 1 = HCF(638,1) .

HCF using Euclid's Algorithm Calculation Examples

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

Frequently Asked Questions on HCF of 615, 826, 638 using Euclid's Algorithm

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 615, 826, 638?

Answer: HCF of 615, 826, 638 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 615, 826, 638 using Euclid's Algorithm?

Answer: For arbitrary numbers 615, 826, 638 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.