Highest Common Factor of 781, 671, 12 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 781, 671, 12 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 781, 671, 12 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 781, 671, 12 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 781, 671, 12 is 1.

HCF(781, 671, 12) = 1

HCF of 781, 671, 12 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 781, 671, 12 is 1.

Highest Common Factor of 781,671,12 using Euclid's algorithm

Highest Common Factor of 781,671,12 is 1

Step 1: Since 781 > 671, we apply the division lemma to 781 and 671, to get

781 = 671 x 1 + 110

Step 2: Since the reminder 671 ≠ 0, we apply division lemma to 110 and 671, to get

671 = 110 x 6 + 11

Step 3: We consider the new divisor 110 and the new remainder 11, and apply the division lemma to get

110 = 11 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 11, the HCF of 781 and 671 is 11

Notice that 11 = HCF(110,11) = HCF(671,110) = HCF(781,671) .


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

Step 1: Since 12 > 11, we apply the division lemma to 12 and 11, to get

12 = 11 x 1 + 1

Step 2: Since the reminder 11 ≠ 0, we apply division lemma to 1 and 11, to get

11 = 1 x 11 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 11 and 12 is 1

Notice that 1 = HCF(11,1) = HCF(12,11) .

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Frequently Asked Questions on HCF of 781, 671, 12 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 781, 671, 12?

Answer: HCF of 781, 671, 12 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 781, 671, 12 using Euclid's Algorithm?

Answer: For arbitrary numbers 781, 671, 12 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.