Highest Common Factor of 691, 868, 843 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 691, 868, 843 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 691, 868, 843 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 691, 868, 843 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 691, 868, 843 is 1.
HCF(691, 868, 843) = 1
HCF of 691, 868, 843 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 691, 868, 843 is 1.
Highest Common Factor of 691,868,843 is 1
Step 1: Since 868 > 691, we apply the division lemma to 868 and 691, to get
868 = 691 x 1 + 177
Step 2: Since the reminder 691 ≠ 0, we apply division lemma to 177 and 691, to get
691 = 177 x 3 + 160
Step 3: We consider the new divisor 177 and the new remainder 160, and apply the division lemma to get
177 = 160 x 1 + 17
We consider the new divisor 160 and the new remainder 17,and apply the division lemma to get
160 = 17 x 9 + 7
We consider the new divisor 17 and the new remainder 7,and apply the division lemma to get
17 = 7 x 2 + 3
We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get
7 = 3 x 2 + 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 691 and 868 is 1
Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(17,7) = HCF(160,17) = HCF(177,160) = HCF(691,177) = HCF(868,691) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 843 > 1, we apply the division lemma to 843 and 1, to get
843 = 1 x 843 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 843 is 1
Notice that 1 = HCF(843,1) .
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Frequently Asked Questions on HCF of 691, 868, 843 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 691, 868, 843?
Answer: HCF of 691, 868, 843 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 691, 868, 843 using Euclid's Algorithm?
Answer: For arbitrary numbers 691, 868, 843 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.