Highest Common Factor of 865, 331 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 865, 331 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 865, 331 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 865, 331 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 865, 331 is 1.

HCF(865, 331) = 1

HCF of 865, 331 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 865, 331 is 1.

Highest Common Factor of 865,331 using Euclid's algorithm

Highest Common Factor of 865,331 is 1

Step 1: Since 865 > 331, we apply the division lemma to 865 and 331, to get

865 = 331 x 2 + 203

Step 2: Since the reminder 331 ≠ 0, we apply division lemma to 203 and 331, to get

331 = 203 x 1 + 128

Step 3: We consider the new divisor 203 and the new remainder 128, and apply the division lemma to get

203 = 128 x 1 + 75

We consider the new divisor 128 and the new remainder 75,and apply the division lemma to get

128 = 75 x 1 + 53

We consider the new divisor 75 and the new remainder 53,and apply the division lemma to get

75 = 53 x 1 + 22

We consider the new divisor 53 and the new remainder 22,and apply the division lemma to get

53 = 22 x 2 + 9

We consider the new divisor 22 and the new remainder 9,and apply the division lemma to get

22 = 9 x 2 + 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 865 and 331 is 1

Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(22,9) = HCF(53,22) = HCF(75,53) = HCF(128,75) = HCF(203,128) = HCF(331,203) = HCF(865,331) .

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Frequently Asked Questions on HCF of 865, 331 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 865, 331?

Answer: HCF of 865, 331 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 865, 331 using Euclid's Algorithm?

Answer: For arbitrary numbers 865, 331 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.