Highest Common Factor of 817, 427 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 817, 427 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 817, 427 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 817, 427 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 817, 427 is 1.
HCF(817, 427) = 1
HCF of 817, 427 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 817, 427 is 1.
Highest Common Factor of 817,427 is 1
Step 1: Since 817 > 427, we apply the division lemma to 817 and 427, to get
817 = 427 x 1 + 390
Step 2: Since the reminder 427 ≠ 0, we apply division lemma to 390 and 427, to get
427 = 390 x 1 + 37
Step 3: We consider the new divisor 390 and the new remainder 37, and apply the division lemma to get
390 = 37 x 10 + 20
We consider the new divisor 37 and the new remainder 20,and apply the division lemma to get
37 = 20 x 1 + 17
We consider the new divisor 20 and the new remainder 17,and apply the division lemma to get
20 = 17 x 1 + 3
We consider the new divisor 17 and the new remainder 3,and apply the division lemma to get
17 = 3 x 5 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 817 and 427 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(17,3) = HCF(20,17) = HCF(37,20) = HCF(390,37) = HCF(427,390) = HCF(817,427) .
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Frequently Asked Questions on HCF of 817, 427 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 817, 427?
Answer: HCF of 817, 427 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 817, 427 using Euclid's Algorithm?
Answer: For arbitrary numbers 817, 427 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.