Highest Common Factor of 678, 809 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, 809 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 678, 809 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, 809 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, 809 is 1.
HCF(678, 809) = 1
HCF of 678, 809 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, 809 is 1.
Highest Common Factor of 678,809 is 1
Step 1: Since 809 > 678, we apply the division lemma to 809 and 678, to get
809 = 678 x 1 + 131
Step 2: Since the reminder 678 ≠ 0, we apply division lemma to 131 and 678, to get
678 = 131 x 5 + 23
Step 3: We consider the new divisor 131 and the new remainder 23, and apply the division lemma to get
131 = 23 x 5 + 16
We consider the new divisor 23 and the new remainder 16,and apply the division lemma to get
23 = 16 x 1 + 7
We consider the new divisor 16 and the new remainder 7,and apply the division lemma to get
16 = 7 x 2 + 2
We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get
7 = 2 x 3 + 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 678 and 809 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(16,7) = HCF(23,16) = HCF(131,23) = HCF(678,131) = HCF(809,678) .
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Frequently Asked Questions on HCF of 678, 809 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, 809?
Answer: HCF of 678, 809 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 678, 809 using Euclid's Algorithm?
Answer: For arbitrary numbers 678, 809 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.