Highest Common Factor of 491, 23770 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 491, 23770 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 491, 23770 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 491, 23770 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 491, 23770 is 1.

HCF(491, 23770) = 1

HCF of 491, 23770 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 491, 23770 is 1.

Highest Common Factor of 491,23770 using Euclid's algorithm

Highest Common Factor of 491,23770 is 1

Step 1: Since 23770 > 491, we apply the division lemma to 23770 and 491, to get

23770 = 491 x 48 + 202

Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 202 and 491, to get

491 = 202 x 2 + 87

Step 3: We consider the new divisor 202 and the new remainder 87, and apply the division lemma to get

202 = 87 x 2 + 28

We consider the new divisor 87 and the new remainder 28,and apply the division lemma to get

87 = 28 x 3 + 3

We consider the new divisor 28 and the new remainder 3,and apply the division lemma to get

28 = 3 x 9 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 491 and 23770 is 1

Notice that 1 = HCF(3,1) = HCF(28,3) = HCF(87,28) = HCF(202,87) = HCF(491,202) = HCF(23770,491) .

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Frequently Asked Questions on HCF of 491, 23770 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 491, 23770?

Answer: HCF of 491, 23770 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 491, 23770 using Euclid's Algorithm?

Answer: For arbitrary numbers 491, 23770 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.