Highest Common Factor of 517, 823 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 517, 823 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 517, 823 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 517, 823 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 517, 823 is 1.

HCF(517, 823) = 1

HCF of 517, 823 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

HCF of:

Highest common factor (HCF) of 517, 823 is 1.

Highest Common Factor of 517,823 using Euclid's algorithm

Highest Common Factor of 517,823 is 1

Step 1: Since 823 > 517, we apply the division lemma to 823 and 517, to get

823 = 517 x 1 + 306

Step 2: Since the reminder 517 ≠ 0, we apply division lemma to 306 and 517, to get

517 = 306 x 1 + 211

Step 3: We consider the new divisor 306 and the new remainder 211, and apply the division lemma to get

306 = 211 x 1 + 95

We consider the new divisor 211 and the new remainder 95,and apply the division lemma to get

211 = 95 x 2 + 21

We consider the new divisor 95 and the new remainder 21,and apply the division lemma to get

95 = 21 x 4 + 11

We consider the new divisor 21 and the new remainder 11,and apply the division lemma to get

21 = 11 x 1 + 10

We consider the new divisor 11 and the new remainder 10,and apply the division lemma to get

11 = 10 x 1 + 1

We consider the new divisor 10 and the new remainder 1,and apply the division lemma to get

10 = 1 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 517 and 823 is 1

Notice that 1 = HCF(10,1) = HCF(11,10) = HCF(21,11) = HCF(95,21) = HCF(211,95) = HCF(306,211) = HCF(517,306) = HCF(823,517) .

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Frequently Asked Questions on HCF of 517, 823 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 517, 823?

Answer: HCF of 517, 823 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 517, 823 using Euclid's Algorithm?

Answer: For arbitrary numbers 517, 823 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.