Highest Common Factor of 430, 786, 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 430, 786, 647 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 430, 786, 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 430, 786, 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 430, 786, 647 is 1.

HCF(430, 786, 647) = 1

HCF of 430, 786, 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 430, 786, 647 is 1.

Highest Common Factor of 430,786,647 using Euclid's algorithm

Highest Common Factor of 430,786,647 is 1

Step 1: Since 786 > 430, we apply the division lemma to 786 and 430, to get

786 = 430 x 1 + 356

Step 2: Since the reminder 430 ≠ 0, we apply division lemma to 356 and 430, to get

430 = 356 x 1 + 74

Step 3: We consider the new divisor 356 and the new remainder 74, and apply the division lemma to get

356 = 74 x 4 + 60

We consider the new divisor 74 and the new remainder 60,and apply the division lemma to get

74 = 60 x 1 + 14

We consider the new divisor 60 and the new remainder 14,and apply the division lemma to get

60 = 14 x 4 + 4

We consider the new divisor 14 and the new remainder 4,and apply the division lemma to get

14 = 4 x 3 + 2

We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get

4 = 2 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 430 and 786 is 2

Notice that 2 = HCF(4,2) = HCF(14,4) = HCF(60,14) = HCF(74,60) = HCF(356,74) = HCF(430,356) = HCF(786,430) .

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

Step 1: Since 647 > 2, we apply the division lemma to 647 and 2, to get

647 = 2 x 323 + 1

Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 647 is 1

Notice that 1 = HCF(2,1) = HCF(647,2) .

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Frequently Asked Questions on HCF of 430, 786, 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 430, 786, 647?

Answer: HCF of 430, 786, 647 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 430, 786, 647 using Euclid's Algorithm?

Answer: For arbitrary numbers 430, 786, 647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.