Highest Common Factor of 669, 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 669, 651 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 669, 651 is 3 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 669, 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 669, 651 is 3.

HCF(669, 651) = 3

HCF of 669, 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 669, 651 is 3.

Highest Common Factor of 669,651 using Euclid's algorithm

Highest Common Factor of 669,651 is 3

Step 1: Since 669 > 651, we apply the division lemma to 669 and 651, to get

669 = 651 x 1 + 18

Step 2: Since the reminder 651 ≠ 0, we apply division lemma to 18 and 651, to get

651 = 18 x 36 + 3

Step 3: We consider the new divisor 18 and the new remainder 3, and apply the division lemma to get

18 = 3 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 669 and 651 is 3

Notice that 3 = HCF(18,3) = HCF(651,18) = HCF(669,651) .

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Frequently Asked Questions on HCF of 669, 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 669, 651?

Answer: HCF of 669, 651 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 669, 651 using Euclid's Algorithm?

Answer: For arbitrary numbers 669, 651 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.