Highest Common Factor of 620, 173 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 620, 173 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 620, 173 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 620, 173 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 620, 173 is 1.

HCF(620, 173) = 1

HCF of 620, 173 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 620, 173 is 1.

Highest Common Factor of 620,173 using Euclid's algorithm

Highest Common Factor of 620,173 is 1

Step 1: Since 620 > 173, we apply the division lemma to 620 and 173, to get

620 = 173 x 3 + 101

Step 2: Since the reminder 173 ≠ 0, we apply division lemma to 101 and 173, to get

173 = 101 x 1 + 72

Step 3: We consider the new divisor 101 and the new remainder 72, and apply the division lemma to get

101 = 72 x 1 + 29

We consider the new divisor 72 and the new remainder 29,and apply the division lemma to get

72 = 29 x 2 + 14

We consider the new divisor 29 and the new remainder 14,and apply the division lemma to get

29 = 14 x 2 + 1

We consider the new divisor 14 and the new remainder 1,and apply the division lemma to get

14 = 1 x 14 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 620 and 173 is 1

Notice that 1 = HCF(14,1) = HCF(29,14) = HCF(72,29) = HCF(101,72) = HCF(173,101) = HCF(620,173) .

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Frequently Asked Questions on HCF of 620, 173 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 620, 173?

Answer: HCF of 620, 173 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 620, 173 using Euclid's Algorithm?

Answer: For arbitrary numbers 620, 173 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.