Highest Common Factor of 349, 538, 638 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 349, 538, 638 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 349, 538, 638 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 349, 538, 638 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 349, 538, 638 is 1.

HCF(349, 538, 638) = 1

HCF of 349, 538, 638 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 349, 538, 638 is 1.

Highest Common Factor of 349,538,638 using Euclid's algorithm

Highest Common Factor of 349,538,638 is 1

Step 1: Since 538 > 349, we apply the division lemma to 538 and 349, to get

538 = 349 x 1 + 189

Step 2: Since the reminder 349 ≠ 0, we apply division lemma to 189 and 349, to get

349 = 189 x 1 + 160

Step 3: We consider the new divisor 189 and the new remainder 160, and apply the division lemma to get

189 = 160 x 1 + 29

We consider the new divisor 160 and the new remainder 29,and apply the division lemma to get

160 = 29 x 5 + 15

We consider the new divisor 29 and the new remainder 15,and apply the division lemma to get

29 = 15 x 1 + 14

We consider the new divisor 15 and the new remainder 14,and apply the division lemma to get

15 = 14 x 1 + 1

We consider the new divisor 14 and the new remainder 1,and apply the division lemma to get

14 = 1 x 14 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 349 and 538 is 1

Notice that 1 = HCF(14,1) = HCF(15,14) = HCF(29,15) = HCF(160,29) = HCF(189,160) = HCF(349,189) = HCF(538,349) .

We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

Step 1: Since 638 > 1, we apply the division lemma to 638 and 1, to get

638 = 1 x 638 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 638 is 1

Notice that 1 = HCF(638,1) .

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Frequently Asked Questions on HCF of 349, 538, 638 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 349, 538, 638?

Answer: HCF of 349, 538, 638 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 349, 538, 638 using Euclid's Algorithm?

Answer: For arbitrary numbers 349, 538, 638 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.