Highest Common Factor of 777, 980, 634 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 777, 980, 634 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 777, 980, 634 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 777, 980, 634 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 777, 980, 634 is 1.

HCF(777, 980, 634) = 1

HCF of 777, 980, 634 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 777, 980, 634 is 1.

Highest Common Factor of 777,980,634 using Euclid's algorithm

Highest Common Factor of 777,980,634 is 1

Step 1: Since 980 > 777, we apply the division lemma to 980 and 777, to get

980 = 777 x 1 + 203

Step 2: Since the reminder 777 ≠ 0, we apply division lemma to 203 and 777, to get

777 = 203 x 3 + 168

Step 3: We consider the new divisor 203 and the new remainder 168, and apply the division lemma to get

203 = 168 x 1 + 35

We consider the new divisor 168 and the new remainder 35,and apply the division lemma to get

168 = 35 x 4 + 28

We consider the new divisor 35 and the new remainder 28,and apply the division lemma to get

35 = 28 x 1 + 7

We consider the new divisor 28 and the new remainder 7,and apply the division lemma to get

28 = 7 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 777 and 980 is 7

Notice that 7 = HCF(28,7) = HCF(35,28) = HCF(168,35) = HCF(203,168) = HCF(777,203) = HCF(980,777) .

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

Step 1: Since 634 > 7, we apply the division lemma to 634 and 7, to get

634 = 7 x 90 + 4

Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 4 and 7, to get

7 = 4 x 1 + 3

Step 3: We consider the new divisor 4 and the new remainder 3, and apply the division lemma to get

4 = 3 x 1 + 1

We consider the new divisor 3 and the new remainder 1, and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 7 and 634 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(634,7) .

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Frequently Asked Questions on HCF of 777, 980, 634 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 777, 980, 634?

Answer: HCF of 777, 980, 634 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 777, 980, 634 using Euclid's Algorithm?

Answer: For arbitrary numbers 777, 980, 634 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.