Highest Common Factor of 605, 491 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 605, 491 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 605, 491 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 605, 491 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 605, 491 is 1.

HCF(605, 491) = 1

HCF of 605, 491 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 605, 491 is 1.

Highest Common Factor of 605,491 using Euclid's algorithm

Highest Common Factor of 605,491 is 1

Step 1: Since 605 > 491, we apply the division lemma to 605 and 491, to get

605 = 491 x 1 + 114

Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 114 and 491, to get

491 = 114 x 4 + 35

Step 3: We consider the new divisor 114 and the new remainder 35, and apply the division lemma to get

114 = 35 x 3 + 9

We consider the new divisor 35 and the new remainder 9,and apply the division lemma to get

35 = 9 x 3 + 8

We consider the new divisor 9 and the new remainder 8,and apply the division lemma to get

9 = 8 x 1 + 1

We consider the new divisor 8 and the new remainder 1,and apply the division lemma to get

8 = 1 x 8 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 605 and 491 is 1

Notice that 1 = HCF(8,1) = HCF(9,8) = HCF(35,9) = HCF(114,35) = HCF(491,114) = HCF(605,491) .

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Frequently Asked Questions on HCF of 605, 491 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 605, 491?

Answer: HCF of 605, 491 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 605, 491 using Euclid's Algorithm?

Answer: For arbitrary numbers 605, 491 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.