Highest Common Factor of 817, 457 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, 457 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 817, 457 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, 457 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, 457 is 1.
HCF(817, 457) = 1
HCF of 817, 457 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, 457 is 1.
Highest Common Factor of 817,457 is 1
Step 1: Since 817 > 457, we apply the division lemma to 817 and 457, to get
817 = 457 x 1 + 360
Step 2: Since the reminder 457 ≠ 0, we apply division lemma to 360 and 457, to get
457 = 360 x 1 + 97
Step 3: We consider the new divisor 360 and the new remainder 97, and apply the division lemma to get
360 = 97 x 3 + 69
We consider the new divisor 97 and the new remainder 69,and apply the division lemma to get
97 = 69 x 1 + 28
We consider the new divisor 69 and the new remainder 28,and apply the division lemma to get
69 = 28 x 2 + 13
We consider the new divisor 28 and the new remainder 13,and apply the division lemma to get
28 = 13 x 2 + 2
We consider the new divisor 13 and the new remainder 2,and apply the division lemma to get
13 = 2 x 6 + 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 457 is 1
Notice that 1 = HCF(2,1) = HCF(13,2) = HCF(28,13) = HCF(69,28) = HCF(97,69) = HCF(360,97) = HCF(457,360) = HCF(817,457) .
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Frequently Asked Questions on HCF of 817, 457 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, 457?
Answer: HCF of 817, 457 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 817, 457 using Euclid's Algorithm?
Answer: For arbitrary numbers 817, 457 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.