Highest Common Factor of 815, 274, 407 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 815, 274, 407 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 815, 274, 407 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 815, 274, 407 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 815, 274, 407 is 1.

HCF(815, 274, 407) = 1

HCF of 815, 274, 407 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 815, 274, 407 is 1.

Highest Common Factor of 815,274,407 using Euclid's algorithm

Highest Common Factor of 815,274,407 is 1

Step 1: Since 815 > 274, we apply the division lemma to 815 and 274, to get

815 = 274 x 2 + 267

Step 2: Since the reminder 274 ≠ 0, we apply division lemma to 267 and 274, to get

274 = 267 x 1 + 7

Step 3: We consider the new divisor 267 and the new remainder 7, and apply the division lemma to get

267 = 7 x 38 + 1

We consider the new divisor 7 and the new remainder 1, and apply the division lemma to get

7 = 1 x 7 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 815 and 274 is 1

Notice that 1 = HCF(7,1) = HCF(267,7) = HCF(274,267) = HCF(815,274) .


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

Step 1: Since 407 > 1, we apply the division lemma to 407 and 1, to get

407 = 1 x 407 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 407 is 1

Notice that 1 = HCF(407,1) .

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Frequently Asked Questions on HCF of 815, 274, 407 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 815, 274, 407?

Answer: HCF of 815, 274, 407 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 815, 274, 407 using Euclid's Algorithm?

Answer: For arbitrary numbers 815, 274, 407 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.