Highest Common Factor of 639, 169, 636 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, 169, 636 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 639, 169, 636 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, 169, 636 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, 169, 636 is 1.

HCF(639, 169, 636) = 1

HCF of 639, 169, 636 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, 169, 636 is 1.

Highest Common Factor of 639,169,636 using Euclid's algorithm

Highest Common Factor of 639,169,636 is 1

Step 1: Since 639 > 169, we apply the division lemma to 639 and 169, to get

639 = 169 x 3 + 132

Step 2: Since the reminder 169 ≠ 0, we apply division lemma to 132 and 169, to get

169 = 132 x 1 + 37

Step 3: We consider the new divisor 132 and the new remainder 37, and apply the division lemma to get

132 = 37 x 3 + 21

We consider the new divisor 37 and the new remainder 21,and apply the division lemma to get

37 = 21 x 1 + 16

We consider the new divisor 21 and the new remainder 16,and apply the division lemma to get

21 = 16 x 1 + 5

We consider the new divisor 16 and the new remainder 5,and apply the division lemma to get

16 = 5 x 3 + 1

We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get

5 = 1 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 639 and 169 is 1

Notice that 1 = HCF(5,1) = HCF(16,5) = HCF(21,16) = HCF(37,21) = HCF(132,37) = HCF(169,132) = HCF(639,169) .

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

Step 1: Since 636 > 1, we apply the division lemma to 636 and 1, to get

636 = 1 x 636 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 636 is 1

Notice that 1 = HCF(636,1) .

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Frequently Asked Questions on HCF of 639, 169, 636 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, 169, 636?

Answer: HCF of 639, 169, 636 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 639, 169, 636 using Euclid's Algorithm?

Answer: For arbitrary numbers 639, 169, 636 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.