Highest Common Factor of 397, 740, 438 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 397, 740, 438 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 397, 740, 438 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 397, 740, 438 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 397, 740, 438 is 1.

HCF(397, 740, 438) = 1

HCF of 397, 740, 438 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 397, 740, 438 is 1.

Highest Common Factor of 397,740,438 using Euclid's algorithm

Highest Common Factor of 397,740,438 is 1

Step 1: Since 740 > 397, we apply the division lemma to 740 and 397, to get

740 = 397 x 1 + 343

Step 2: Since the reminder 397 ≠ 0, we apply division lemma to 343 and 397, to get

397 = 343 x 1 + 54

Step 3: We consider the new divisor 343 and the new remainder 54, and apply the division lemma to get

343 = 54 x 6 + 19

We consider the new divisor 54 and the new remainder 19,and apply the division lemma to get

54 = 19 x 2 + 16

We consider the new divisor 19 and the new remainder 16,and apply the division lemma to get

19 = 16 x 1 + 3

We consider the new divisor 16 and the new remainder 3,and apply the division lemma to get

16 = 3 x 5 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 397 and 740 is 1

Notice that 1 = HCF(3,1) = HCF(16,3) = HCF(19,16) = HCF(54,19) = HCF(343,54) = HCF(397,343) = HCF(740,397) .

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

Step 1: Since 438 > 1, we apply the division lemma to 438 and 1, to get

438 = 1 x 438 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 438 is 1

Notice that 1 = HCF(438,1) .

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Frequently Asked Questions on HCF of 397, 740, 438 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 397, 740, 438?

Answer: HCF of 397, 740, 438 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 397, 740, 438 using Euclid's Algorithm?

Answer: For arbitrary numbers 397, 740, 438 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.