Highest Common Factor of 689, 370, 791 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 689, 370, 791 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 689, 370, 791 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 689, 370, 791 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 689, 370, 791 is 1.

HCF(689, 370, 791) = 1

HCF of 689, 370, 791 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 689, 370, 791 is 1.

Highest Common Factor of 689,370,791 using Euclid's algorithm

Highest Common Factor of 689,370,791 is 1

Step 1: Since 689 > 370, we apply the division lemma to 689 and 370, to get

689 = 370 x 1 + 319

Step 2: Since the reminder 370 ≠ 0, we apply division lemma to 319 and 370, to get

370 = 319 x 1 + 51

Step 3: We consider the new divisor 319 and the new remainder 51, and apply the division lemma to get

319 = 51 x 6 + 13

We consider the new divisor 51 and the new remainder 13,and apply the division lemma to get

51 = 13 x 3 + 12

We consider the new divisor 13 and the new remainder 12,and apply the division lemma to get

13 = 12 x 1 + 1

We consider the new divisor 12 and the new remainder 1,and apply the division lemma to get

12 = 1 x 12 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 689 and 370 is 1

Notice that 1 = HCF(12,1) = HCF(13,12) = HCF(51,13) = HCF(319,51) = HCF(370,319) = HCF(689,370) .

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

Step 1: Since 791 > 1, we apply the division lemma to 791 and 1, to get

791 = 1 x 791 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 791 is 1

Notice that 1 = HCF(791,1) .

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Frequently Asked Questions on HCF of 689, 370, 791 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 689, 370, 791?

Answer: HCF of 689, 370, 791 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 689, 370, 791 using Euclid's Algorithm?

Answer: For arbitrary numbers 689, 370, 791 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.