Highest Common Factor of 427, 651 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 427, 651 i.e. 7 the largest integer that leaves a remainder zero for all numbers.

HCF of 427, 651 is 7 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 427, 651 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 427, 651 is 7.

HCF(427, 651) = 7

HCF of 427, 651 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 427, 651 is 7.

Highest Common Factor of 427,651 using Euclid's algorithm

Highest Common Factor of 427,651 is 7

Step 1: Since 651 > 427, we apply the division lemma to 651 and 427, to get

651 = 427 x 1 + 224

Step 2: Since the reminder 427 ≠ 0, we apply division lemma to 224 and 427, to get

427 = 224 x 1 + 203

Step 3: We consider the new divisor 224 and the new remainder 203, and apply the division lemma to get

224 = 203 x 1 + 21

We consider the new divisor 203 and the new remainder 21,and apply the division lemma to get

203 = 21 x 9 + 14

We consider the new divisor 21 and the new remainder 14,and apply the division lemma to get

21 = 14 x 1 + 7

We consider the new divisor 14 and the new remainder 7,and apply the division lemma to get

14 = 7 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 427 and 651 is 7

Notice that 7 = HCF(14,7) = HCF(21,14) = HCF(203,21) = HCF(224,203) = HCF(427,224) = HCF(651,427) .

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Frequently Asked Questions on HCF of 427, 651 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 427, 651?

Answer: HCF of 427, 651 is 7 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 427, 651 using Euclid's Algorithm?

Answer: For arbitrary numbers 427, 651 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.