Highest Common Factor of 778, 426, 682 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 778, 426, 682 i.e. 2 the largest integer that leaves a remainder zero for all numbers.

HCF of 778, 426, 682 is 2 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 778, 426, 682 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 778, 426, 682 is 2.

HCF(778, 426, 682) = 2

HCF of 778, 426, 682 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 778, 426, 682 is 2.

Highest Common Factor of 778,426,682 using Euclid's algorithm

Highest Common Factor of 778,426,682 is 2

Step 1: Since 778 > 426, we apply the division lemma to 778 and 426, to get

778 = 426 x 1 + 352

Step 2: Since the reminder 426 ≠ 0, we apply division lemma to 352 and 426, to get

426 = 352 x 1 + 74

Step 3: We consider the new divisor 352 and the new remainder 74, and apply the division lemma to get

352 = 74 x 4 + 56

We consider the new divisor 74 and the new remainder 56,and apply the division lemma to get

74 = 56 x 1 + 18

We consider the new divisor 56 and the new remainder 18,and apply the division lemma to get

56 = 18 x 3 + 2

We consider the new divisor 18 and the new remainder 2,and apply the division lemma to get

18 = 2 x 9 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 778 and 426 is 2

Notice that 2 = HCF(18,2) = HCF(56,18) = HCF(74,56) = HCF(352,74) = HCF(426,352) = HCF(778,426) .


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

Step 1: Since 682 > 2, we apply the division lemma to 682 and 2, to get

682 = 2 x 341 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 682 is 2

Notice that 2 = HCF(682,2) .

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Frequently Asked Questions on HCF of 778, 426, 682 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 778, 426, 682?

Answer: HCF of 778, 426, 682 is 2 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 778, 426, 682 using Euclid's Algorithm?

Answer: For arbitrary numbers 778, 426, 682 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.