Highest Common Factor of 809, 464, 820 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 809, 464, 820 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 809, 464, 820 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 809, 464, 820 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 809, 464, 820 is 1.

HCF(809, 464, 820) = 1

HCF of 809, 464, 820 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 809, 464, 820 is 1.

Highest Common Factor of 809,464,820 using Euclid's algorithm

Highest Common Factor of 809,464,820 is 1

Step 1: Since 809 > 464, we apply the division lemma to 809 and 464, to get

809 = 464 x 1 + 345

Step 2: Since the reminder 464 ≠ 0, we apply division lemma to 345 and 464, to get

464 = 345 x 1 + 119

Step 3: We consider the new divisor 345 and the new remainder 119, and apply the division lemma to get

345 = 119 x 2 + 107

We consider the new divisor 119 and the new remainder 107,and apply the division lemma to get

119 = 107 x 1 + 12

We consider the new divisor 107 and the new remainder 12,and apply the division lemma to get

107 = 12 x 8 + 11

We consider the new divisor 12 and the new remainder 11,and apply the division lemma to get

12 = 11 x 1 + 1

We consider the new divisor 11 and the new remainder 1,and apply the division lemma to get

11 = 1 x 11 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 809 and 464 is 1

Notice that 1 = HCF(11,1) = HCF(12,11) = HCF(107,12) = HCF(119,107) = HCF(345,119) = HCF(464,345) = HCF(809,464) .


We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

Step 1: Since 820 > 1, we apply the division lemma to 820 and 1, to get

820 = 1 x 820 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 820 is 1

Notice that 1 = HCF(820,1) .

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Frequently Asked Questions on HCF of 809, 464, 820 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 809, 464, 820?

Answer: HCF of 809, 464, 820 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 809, 464, 820 using Euclid's Algorithm?

Answer: For arbitrary numbers 809, 464, 820 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.