Highest Common Factor of 718, 205, 647 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 718, 205, 647 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 718, 205, 647 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 718, 205, 647 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 718, 205, 647 is 1.

HCF(718, 205, 647) = 1

HCF of 718, 205, 647 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 718, 205, 647 is 1.

Highest Common Factor of 718,205,647 using Euclid's algorithm

Highest Common Factor of 718,205,647 is 1

Step 1: Since 718 > 205, we apply the division lemma to 718 and 205, to get

718 = 205 x 3 + 103

Step 2: Since the reminder 205 ≠ 0, we apply division lemma to 103 and 205, to get

205 = 103 x 1 + 102

Step 3: We consider the new divisor 103 and the new remainder 102, and apply the division lemma to get

103 = 102 x 1 + 1

We consider the new divisor 102 and the new remainder 1, and apply the division lemma to get

102 = 1 x 102 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 718 and 205 is 1

Notice that 1 = HCF(102,1) = HCF(103,102) = HCF(205,103) = HCF(718,205) .


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

Step 1: Since 647 > 1, we apply the division lemma to 647 and 1, to get

647 = 1 x 647 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 647 is 1

Notice that 1 = HCF(647,1) .

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Frequently Asked Questions on HCF of 718, 205, 647 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 718, 205, 647?

Answer: HCF of 718, 205, 647 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 718, 205, 647 using Euclid's Algorithm?

Answer: For arbitrary numbers 718, 205, 647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.