Highest Common Factor of 821, 476 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 821, 476 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 821, 476 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 821, 476 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 821, 476 is 1.

HCF(821, 476) = 1

HCF of 821, 476 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 821, 476 is 1.

Highest Common Factor of 821,476 using Euclid's algorithm

Highest Common Factor of 821,476 is 1

Step 1: Since 821 > 476, we apply the division lemma to 821 and 476, to get

821 = 476 x 1 + 345

Step 2: Since the reminder 476 ≠ 0, we apply division lemma to 345 and 476, to get

476 = 345 x 1 + 131

Step 3: We consider the new divisor 345 and the new remainder 131, and apply the division lemma to get

345 = 131 x 2 + 83

We consider the new divisor 131 and the new remainder 83,and apply the division lemma to get

131 = 83 x 1 + 48

We consider the new divisor 83 and the new remainder 48,and apply the division lemma to get

83 = 48 x 1 + 35

We consider the new divisor 48 and the new remainder 35,and apply the division lemma to get

48 = 35 x 1 + 13

We consider the new divisor 35 and the new remainder 13,and apply the division lemma to get

35 = 13 x 2 + 9

We consider the new divisor 13 and the new remainder 9,and apply the division lemma to get

13 = 9 x 1 + 4

We consider the new divisor 9 and the new remainder 4,and apply the division lemma to get

9 = 4 x 2 + 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 821 and 476 is 1

Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(13,9) = HCF(35,13) = HCF(48,35) = HCF(83,48) = HCF(131,83) = HCF(345,131) = HCF(476,345) = HCF(821,476) .

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Frequently Asked Questions on HCF of 821, 476 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 821, 476?

Answer: HCF of 821, 476 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 821, 476 using Euclid's Algorithm?

Answer: For arbitrary numbers 821, 476 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.