Highest Common Factor of 68, 653, 138, 397 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 68, 653, 138, 397 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 68, 653, 138, 397 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 68, 653, 138, 397 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 68, 653, 138, 397 is 1.

HCF(68, 653, 138, 397) = 1

HCF of 68, 653, 138, 397 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 68, 653, 138, 397 is 1.

Highest Common Factor of 68,653,138,397 using Euclid's algorithm

Highest Common Factor of 68,653,138,397 is 1

Step 1: Since 653 > 68, we apply the division lemma to 653 and 68, to get

653 = 68 x 9 + 41

Step 2: Since the reminder 68 ≠ 0, we apply division lemma to 41 and 68, to get

68 = 41 x 1 + 27

Step 3: We consider the new divisor 41 and the new remainder 27, and apply the division lemma to get

41 = 27 x 1 + 14

We consider the new divisor 27 and the new remainder 14,and apply the division lemma to get

27 = 14 x 1 + 13

We consider the new divisor 14 and the new remainder 13,and apply the division lemma to get

14 = 13 x 1 + 1

We consider the new divisor 13 and the new remainder 1,and apply the division lemma to get

13 = 1 x 13 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 68 and 653 is 1

Notice that 1 = HCF(13,1) = HCF(14,13) = HCF(27,14) = HCF(41,27) = HCF(68,41) = HCF(653,68) .

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

Step 1: Since 138 > 1, we apply the division lemma to 138 and 1, to get

138 = 1 x 138 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 138 is 1

Notice that 1 = HCF(138,1) .

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

Step 1: Since 397 > 1, we apply the division lemma to 397 and 1, to get

397 = 1 x 397 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 397 is 1

Notice that 1 = HCF(397,1) .

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Frequently Asked Questions on HCF of 68, 653, 138, 397 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 68, 653, 138, 397?

Answer: HCF of 68, 653, 138, 397 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 68, 653, 138, 397 using Euclid's Algorithm?

Answer: For arbitrary numbers 68, 653, 138, 397 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.