Highest Common Factor of 822, 20585 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 822, 20585 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 822, 20585 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 822, 20585 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 822, 20585 is 1.

HCF(822, 20585) = 1

HCF of 822, 20585 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 822, 20585 is 1.

Highest Common Factor of 822,20585 using Euclid's algorithm

Highest Common Factor of 822,20585 is 1

Step 1: Since 20585 > 822, we apply the division lemma to 20585 and 822, to get

20585 = 822 x 25 + 35

Step 2: Since the reminder 822 ≠ 0, we apply division lemma to 35 and 822, to get

822 = 35 x 23 + 17

Step 3: We consider the new divisor 35 and the new remainder 17, and apply the division lemma to get

35 = 17 x 2 + 1

We consider the new divisor 17 and the new remainder 1, and apply the division lemma to get

17 = 1 x 17 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 822 and 20585 is 1

Notice that 1 = HCF(17,1) = HCF(35,17) = HCF(822,35) = HCF(20585,822) .

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Frequently Asked Questions on HCF of 822, 20585 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 822, 20585?

Answer: HCF of 822, 20585 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 822, 20585 using Euclid's Algorithm?

Answer: For arbitrary numbers 822, 20585 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.