Highest Common Factor of 651, 991, 823 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 651, 991, 823 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 651, 991, 823 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 651, 991, 823 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 651, 991, 823 is 1.

HCF(651, 991, 823) = 1

HCF of 651, 991, 823 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 651, 991, 823 is 1.

Highest Common Factor of 651,991,823 using Euclid's algorithm

Highest Common Factor of 651,991,823 is 1

Step 1: Since 991 > 651, we apply the division lemma to 991 and 651, to get

991 = 651 x 1 + 340

Step 2: Since the reminder 651 ≠ 0, we apply division lemma to 340 and 651, to get

651 = 340 x 1 + 311

Step 3: We consider the new divisor 340 and the new remainder 311, and apply the division lemma to get

340 = 311 x 1 + 29

We consider the new divisor 311 and the new remainder 29,and apply the division lemma to get

311 = 29 x 10 + 21

We consider the new divisor 29 and the new remainder 21,and apply the division lemma to get

29 = 21 x 1 + 8

We consider the new divisor 21 and the new remainder 8,and apply the division lemma to get

21 = 8 x 2 + 5

We consider the new divisor 8 and the new remainder 5,and apply the division lemma to get

8 = 5 x 1 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 651 and 991 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(8,5) = HCF(21,8) = HCF(29,21) = HCF(311,29) = HCF(340,311) = HCF(651,340) = HCF(991,651) .

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

Step 1: Since 823 > 1, we apply the division lemma to 823 and 1, to get

823 = 1 x 823 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 823 is 1

Notice that 1 = HCF(823,1) .

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Frequently Asked Questions on HCF of 651, 991, 823 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 651, 991, 823?

Answer: HCF of 651, 991, 823 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 651, 991, 823 using Euclid's Algorithm?

Answer: For arbitrary numbers 651, 991, 823 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.