Highest Common Factor of 678, 422, 563 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 678, 422, 563 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 678, 422, 563 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 678, 422, 563 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 678, 422, 563 is 1.
HCF(678, 422, 563) = 1
HCF of 678, 422, 563 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 678, 422, 563 is 1.
Highest Common Factor of 678,422,563 is 1
Step 1: Since 678 > 422, we apply the division lemma to 678 and 422, to get
678 = 422 x 1 + 256
Step 2: Since the reminder 422 ≠ 0, we apply division lemma to 256 and 422, to get
422 = 256 x 1 + 166
Step 3: We consider the new divisor 256 and the new remainder 166, and apply the division lemma to get
256 = 166 x 1 + 90
We consider the new divisor 166 and the new remainder 90,and apply the division lemma to get
166 = 90 x 1 + 76
We consider the new divisor 90 and the new remainder 76,and apply the division lemma to get
90 = 76 x 1 + 14
We consider the new divisor 76 and the new remainder 14,and apply the division lemma to get
76 = 14 x 5 + 6
We consider the new divisor 14 and the new remainder 6,and apply the division lemma to get
14 = 6 x 2 + 2
We consider the new divisor 6 and the new remainder 2,and apply the division lemma to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 678 and 422 is 2
Notice that 2 = HCF(6,2) = HCF(14,6) = HCF(76,14) = HCF(90,76) = HCF(166,90) = HCF(256,166) = HCF(422,256) = HCF(678,422) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 563 > 2, we apply the division lemma to 563 and 2, to get
563 = 2 x 281 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 563 is 1
Notice that 1 = HCF(2,1) = HCF(563,2) .
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Frequently Asked Questions on HCF of 678, 422, 563 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 678, 422, 563?
Answer: HCF of 678, 422, 563 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 678, 422, 563 using Euclid's Algorithm?
Answer: For arbitrary numbers 678, 422, 563 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.