Highest Common Factor of 644, 928, 611 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 644, 928, 611 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 644, 928, 611 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 644, 928, 611 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 644, 928, 611 is 1.

HCF(644, 928, 611) = 1

HCF of 644, 928, 611 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 644, 928, 611 is 1.

Highest Common Factor of 644,928,611 using Euclid's algorithm

Highest Common Factor of 644,928,611 is 1

Step 1: Since 928 > 644, we apply the division lemma to 928 and 644, to get

928 = 644 x 1 + 284

Step 2: Since the reminder 644 ≠ 0, we apply division lemma to 284 and 644, to get

644 = 284 x 2 + 76

Step 3: We consider the new divisor 284 and the new remainder 76, and apply the division lemma to get

284 = 76 x 3 + 56

We consider the new divisor 76 and the new remainder 56,and apply the division lemma to get

76 = 56 x 1 + 20

We consider the new divisor 56 and the new remainder 20,and apply the division lemma to get

56 = 20 x 2 + 16

We consider the new divisor 20 and the new remainder 16,and apply the division lemma to get

20 = 16 x 1 + 4

We consider the new divisor 16 and the new remainder 4,and apply the division lemma to get

16 = 4 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 644 and 928 is 4

Notice that 4 = HCF(16,4) = HCF(20,16) = HCF(56,20) = HCF(76,56) = HCF(284,76) = HCF(644,284) = HCF(928,644) .

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

Step 1: Since 611 > 4, we apply the division lemma to 611 and 4, to get

611 = 4 x 152 + 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 611 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(611,4) .

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Frequently Asked Questions on HCF of 644, 928, 611 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 644, 928, 611?

Answer: HCF of 644, 928, 611 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 644, 928, 611 using Euclid's Algorithm?

Answer: For arbitrary numbers 644, 928, 611 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.