Highest Common Factor of 311, 393 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 311, 393 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 311, 393 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 311, 393 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 311, 393 is 1.

HCF(311, 393) = 1

HCF of 311, 393 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 311, 393 is 1.

Highest Common Factor of 311,393 using Euclid's algorithm

Highest Common Factor of 311,393 is 1

Step 1: Since 393 > 311, we apply the division lemma to 393 and 311, to get

393 = 311 x 1 + 82

Step 2: Since the reminder 311 ≠ 0, we apply division lemma to 82 and 311, to get

311 = 82 x 3 + 65

Step 3: We consider the new divisor 82 and the new remainder 65, and apply the division lemma to get

82 = 65 x 1 + 17

We consider the new divisor 65 and the new remainder 17,and apply the division lemma to get

65 = 17 x 3 + 14

We consider the new divisor 17 and the new remainder 14,and apply the division lemma to get

17 = 14 x 1 + 3

We consider the new divisor 14 and the new remainder 3,and apply the division lemma to get

14 = 3 x 4 + 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 311 and 393 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(14,3) = HCF(17,14) = HCF(65,17) = HCF(82,65) = HCF(311,82) = HCF(393,311) .

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Frequently Asked Questions on HCF of 311, 393 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 311, 393?

Answer: HCF of 311, 393 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 311, 393 using Euclid's Algorithm?

Answer: For arbitrary numbers 311, 393 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.