Highest Common Factor of 218, 343 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 218, 343 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 218, 343 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 218, 343 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 218, 343 is 1.

HCF(218, 343) = 1

HCF of 218, 343 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 218, 343 is 1.

Highest Common Factor of 218,343 using Euclid's algorithm

Highest Common Factor of 218,343 is 1

Step 1: Since 343 > 218, we apply the division lemma to 343 and 218, to get

343 = 218 x 1 + 125

Step 2: Since the reminder 218 ≠ 0, we apply division lemma to 125 and 218, to get

218 = 125 x 1 + 93

Step 3: We consider the new divisor 125 and the new remainder 93, and apply the division lemma to get

125 = 93 x 1 + 32

We consider the new divisor 93 and the new remainder 32,and apply the division lemma to get

93 = 32 x 2 + 29

We consider the new divisor 32 and the new remainder 29,and apply the division lemma to get

32 = 29 x 1 + 3

We consider the new divisor 29 and the new remainder 3,and apply the division lemma to get

29 = 3 x 9 + 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 218 and 343 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(29,3) = HCF(32,29) = HCF(93,32) = HCF(125,93) = HCF(218,125) = HCF(343,218) .

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Frequently Asked Questions on HCF of 218, 343 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 218, 343?

Answer: HCF of 218, 343 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 218, 343 using Euclid's Algorithm?

Answer: For arbitrary numbers 218, 343 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.