Highest Common Factor of 481, 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 481, 820 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 481, 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 481, 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 481, 820 is 1.

HCF(481, 820) = 1

HCF of 481, 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 481, 820 is 1.

Highest Common Factor of 481,820 using Euclid's algorithm

Highest Common Factor of 481,820 is 1

Step 1: Since 820 > 481, we apply the division lemma to 820 and 481, to get

820 = 481 x 1 + 339

Step 2: Since the reminder 481 ≠ 0, we apply division lemma to 339 and 481, to get

481 = 339 x 1 + 142

Step 3: We consider the new divisor 339 and the new remainder 142, and apply the division lemma to get

339 = 142 x 2 + 55

We consider the new divisor 142 and the new remainder 55,and apply the division lemma to get

142 = 55 x 2 + 32

We consider the new divisor 55 and the new remainder 32,and apply the division lemma to get

55 = 32 x 1 + 23

We consider the new divisor 32 and the new remainder 23,and apply the division lemma to get

32 = 23 x 1 + 9

We consider the new divisor 23 and the new remainder 9,and apply the division lemma to get

23 = 9 x 2 + 5

We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get

9 = 5 x 1 + 4

We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get

5 = 4 x 1 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 481 and 820 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(23,9) = HCF(32,23) = HCF(55,32) = HCF(142,55) = HCF(339,142) = HCF(481,339) = HCF(820,481) .

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Frequently Asked Questions on HCF of 481, 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 481, 820?

Answer: HCF of 481, 820 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 481, 820 using Euclid's Algorithm?

Answer: For arbitrary numbers 481, 820 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.