Highest Common Factor of 489, 2921 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 489, 2921 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 489, 2921 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 489, 2921 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 489, 2921 is 1.

HCF(489, 2921) = 1

HCF of 489, 2921 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 489, 2921 is 1.

Highest Common Factor of 489,2921 using Euclid's algorithm

Highest Common Factor of 489,2921 is 1

Step 1: Since 2921 > 489, we apply the division lemma to 2921 and 489, to get

2921 = 489 x 5 + 476

Step 2: Since the reminder 489 ≠ 0, we apply division lemma to 476 and 489, to get

489 = 476 x 1 + 13

Step 3: We consider the new divisor 476 and the new remainder 13, and apply the division lemma to get

476 = 13 x 36 + 8

We consider the new divisor 13 and the new remainder 8,and apply the division lemma to get

13 = 8 x 1 + 5

We consider the new divisor 8 and the new remainder 5,and apply the division lemma to get

8 = 5 x 1 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 489 and 2921 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(8,5) = HCF(13,8) = HCF(476,13) = HCF(489,476) = HCF(2921,489) .

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Frequently Asked Questions on HCF of 489, 2921 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 489, 2921?

Answer: HCF of 489, 2921 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 489, 2921 using Euclid's Algorithm?

Answer: For arbitrary numbers 489, 2921 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.