Highest Common Factor of 322, 391 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 322, 391 i.e. 23 the largest integer that leaves a remainder zero for all numbers.

HCF of 322, 391 is 23 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 322, 391 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 322, 391 is 23.

HCF(322, 391) = 23

HCF of 322, 391 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 322, 391 is 23.

Highest Common Factor of 322,391 using Euclid's algorithm

Highest Common Factor of 322,391 is 23

Step 1: Since 391 > 322, we apply the division lemma to 391 and 322, to get

391 = 322 x 1 + 69

Step 2: Since the reminder 322 ≠ 0, we apply division lemma to 69 and 322, to get

322 = 69 x 4 + 46

Step 3: We consider the new divisor 69 and the new remainder 46, and apply the division lemma to get

69 = 46 x 1 + 23

We consider the new divisor 46 and the new remainder 23, and apply the division lemma to get

46 = 23 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 23, the HCF of 322 and 391 is 23

Notice that 23 = HCF(46,23) = HCF(69,46) = HCF(322,69) = HCF(391,322) .

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Frequently Asked Questions on HCF of 322, 391 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 322, 391?

Answer: HCF of 322, 391 is 23 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 322, 391 using Euclid's Algorithm?

Answer: For arbitrary numbers 322, 391 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.