Highest Common Factor of 986, 639, 61 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 986, 639, 61 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 986, 639, 61 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 986, 639, 61 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 986, 639, 61 is 1.

HCF(986, 639, 61) = 1

HCF of 986, 639, 61 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 986, 639, 61 is 1.

Highest Common Factor of 986,639,61 using Euclid's algorithm

Highest Common Factor of 986,639,61 is 1

Step 1: Since 986 > 639, we apply the division lemma to 986 and 639, to get

986 = 639 x 1 + 347

Step 2: Since the reminder 639 ≠ 0, we apply division lemma to 347 and 639, to get

639 = 347 x 1 + 292

Step 3: We consider the new divisor 347 and the new remainder 292, and apply the division lemma to get

347 = 292 x 1 + 55

We consider the new divisor 292 and the new remainder 55,and apply the division lemma to get

292 = 55 x 5 + 17

We consider the new divisor 55 and the new remainder 17,and apply the division lemma to get

55 = 17 x 3 + 4

We consider the new divisor 17 and the new remainder 4,and apply the division lemma to get

17 = 4 x 4 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 986 and 639 is 1

Notice that 1 = HCF(4,1) = HCF(17,4) = HCF(55,17) = HCF(292,55) = HCF(347,292) = HCF(639,347) = HCF(986,639) .

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

Step 1: Since 61 > 1, we apply the division lemma to 61 and 1, to get

61 = 1 x 61 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 61 is 1

Notice that 1 = HCF(61,1) .

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Frequently Asked Questions on HCF of 986, 639, 61 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 986, 639, 61?

Answer: HCF of 986, 639, 61 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 986, 639, 61 using Euclid's Algorithm?

Answer: For arbitrary numbers 986, 639, 61 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.