Highest Common Factor of 686, 563, 673 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, 563, 673 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 686, 563, 673 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 686, 563, 673 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, 563, 673 is 1.
HCF(686, 563, 673) = 1
HCF of 686, 563, 673 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, 563, 673 is 1.
Highest Common Factor of 686,563,673 is 1
Step 1: Since 686 > 563, we apply the division lemma to 686 and 563, to get
686 = 563 x 1 + 123
Step 2: Since the reminder 563 ≠ 0, we apply division lemma to 123 and 563, to get
563 = 123 x 4 + 71
Step 3: We consider the new divisor 123 and the new remainder 71, and apply the division lemma to get
123 = 71 x 1 + 52
We consider the new divisor 71 and the new remainder 52,and apply the division lemma to get
71 = 52 x 1 + 19
We consider the new divisor 52 and the new remainder 19,and apply the division lemma to get
52 = 19 x 2 + 14
We consider the new divisor 19 and the new remainder 14,and apply the division lemma to get
19 = 14 x 1 + 5
We consider the new divisor 14 and the new remainder 5,and apply the division lemma to get
14 = 5 x 2 + 4
We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 686 and 563 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(14,5) = HCF(19,14) = HCF(52,19) = HCF(71,52) = HCF(123,71) = HCF(563,123) = HCF(686,563) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 673 > 1, we apply the division lemma to 673 and 1, to get
673 = 1 x 673 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 673 is 1
Notice that 1 = HCF(673,1) .
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Frequently Asked Questions on HCF of 686, 563, 673 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, 563, 673?
Answer: HCF of 686, 563, 673 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 686, 563, 673 using Euclid's Algorithm?
Answer: For arbitrary numbers 686, 563, 673 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.