Highest Common Factor of 686, 343, 854 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 686, 343, 854 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 686, 343, 854 is 7 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 686, 343, 854 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 686, 343, 854 is 7.
HCF(686, 343, 854) = 7
HCF of 686, 343, 854 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 686, 343, 854 is 7.
Highest Common Factor of 686,343,854 is 7
Step 1: Since 686 > 343, we apply the division lemma to 686 and 343, to get
686 = 343 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 343, the HCF of 686 and 343 is 343
Notice that 343 = HCF(686,343) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 854 > 343, we apply the division lemma to 854 and 343, to get
854 = 343 x 2 + 168
Step 2: Since the reminder 343 ≠ 0, we apply division lemma to 168 and 343, to get
343 = 168 x 2 + 7
Step 3: We consider the new divisor 168 and the new remainder 7, and apply the division lemma to get
168 = 7 x 24 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 343 and 854 is 7
Notice that 7 = HCF(168,7) = HCF(343,168) = HCF(854,343) .
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Frequently Asked Questions on HCF of 686, 343, 854 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 686, 343, 854?
Answer: HCF of 686, 343, 854 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 686, 343, 854 using Euclid's Algorithm?
Answer: For arbitrary numbers 686, 343, 854 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.