Highest Common Factor of 980, 768, 423 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 980, 768, 423 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 980, 768, 423 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 980, 768, 423 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 980, 768, 423 is 1.

HCF(980, 768, 423) = 1

HCF of 980, 768, 423 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 980, 768, 423 is 1.

Highest Common Factor of 980,768,423 using Euclid's algorithm

Highest Common Factor of 980,768,423 is 1

Step 1: Since 980 > 768, we apply the division lemma to 980 and 768, to get

980 = 768 x 1 + 212

Step 2: Since the reminder 768 ≠ 0, we apply division lemma to 212 and 768, to get

768 = 212 x 3 + 132

Step 3: We consider the new divisor 212 and the new remainder 132, and apply the division lemma to get

212 = 132 x 1 + 80

We consider the new divisor 132 and the new remainder 80,and apply the division lemma to get

132 = 80 x 1 + 52

We consider the new divisor 80 and the new remainder 52,and apply the division lemma to get

80 = 52 x 1 + 28

We consider the new divisor 52 and the new remainder 28,and apply the division lemma to get

52 = 28 x 1 + 24

We consider the new divisor 28 and the new remainder 24,and apply the division lemma to get

28 = 24 x 1 + 4

We consider the new divisor 24 and the new remainder 4,and apply the division lemma to get

24 = 4 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 980 and 768 is 4

Notice that 4 = HCF(24,4) = HCF(28,24) = HCF(52,28) = HCF(80,52) = HCF(132,80) = HCF(212,132) = HCF(768,212) = HCF(980,768) .

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

Step 1: Since 423 > 4, we apply the division lemma to 423 and 4, to get

423 = 4 x 105 + 3

Step 2: Since the reminder 4 ≠ 0, we apply division lemma to 3 and 4, to get

4 = 3 x 1 + 1

Step 3: 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 4 and 423 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(423,4) .

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Frequently Asked Questions on HCF of 980, 768, 423 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 980, 768, 423?

Answer: HCF of 980, 768, 423 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 980, 768, 423 using Euclid's Algorithm?

Answer: For arbitrary numbers 980, 768, 423 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.