Highest Common Factor of 423, 591 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 423, 591 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 423, 591 is 3 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 423, 591 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 423, 591 is 3.

HCF(423, 591) = 3

HCF of 423, 591 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 423, 591 is 3.

Highest Common Factor of 423,591 using Euclid's algorithm

Highest Common Factor of 423,591 is 3

Step 1: Since 591 > 423, we apply the division lemma to 591 and 423, to get

591 = 423 x 1 + 168

Step 2: Since the reminder 423 ≠ 0, we apply division lemma to 168 and 423, to get

423 = 168 x 2 + 87

Step 3: We consider the new divisor 168 and the new remainder 87, and apply the division lemma to get

168 = 87 x 1 + 81

We consider the new divisor 87 and the new remainder 81,and apply the division lemma to get

87 = 81 x 1 + 6

We consider the new divisor 81 and the new remainder 6,and apply the division lemma to get

81 = 6 x 13 + 3

We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get

6 = 3 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 423 and 591 is 3

Notice that 3 = HCF(6,3) = HCF(81,6) = HCF(87,81) = HCF(168,87) = HCF(423,168) = HCF(591,423) .

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Frequently Asked Questions on HCF of 423, 591 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 423, 591?

Answer: HCF of 423, 591 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 423, 591 using Euclid's Algorithm?

Answer: For arbitrary numbers 423, 591 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.