Highest Common Factor of 639, 992 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 639, 992 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 639, 992 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 639, 992 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 639, 992 is 1.

HCF(639, 992) = 1

HCF of 639, 992 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 639, 992 is 1.

Highest Common Factor of 639,992 using Euclid's algorithm

Highest Common Factor of 639,992 is 1

Step 1: Since 992 > 639, we apply the division lemma to 992 and 639, to get

992 = 639 x 1 + 353

Step 2: Since the reminder 639 ≠ 0, we apply division lemma to 353 and 639, to get

639 = 353 x 1 + 286

Step 3: We consider the new divisor 353 and the new remainder 286, and apply the division lemma to get

353 = 286 x 1 + 67

We consider the new divisor 286 and the new remainder 67,and apply the division lemma to get

286 = 67 x 4 + 18

We consider the new divisor 67 and the new remainder 18,and apply the division lemma to get

67 = 18 x 3 + 13

We consider the new divisor 18 and the new remainder 13,and apply the division lemma to get

18 = 13 x 1 + 5

We consider the new divisor 13 and the new remainder 5,and apply the division lemma to get

13 = 5 x 2 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma 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 639 and 992 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(13,5) = HCF(18,13) = HCF(67,18) = HCF(286,67) = HCF(353,286) = HCF(639,353) = HCF(992,639) .

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Frequently Asked Questions on HCF of 639, 992 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 639, 992?

Answer: HCF of 639, 992 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 639, 992 using Euclid's Algorithm?

Answer: For arbitrary numbers 639, 992 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.