Highest Common Factor of 800, 621 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 800, 621 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 800, 621 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 800, 621 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 800, 621 is 1.

HCF(800, 621) = 1

HCF of 800, 621 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 800, 621 is 1.

Highest Common Factor of 800,621 using Euclid's algorithm

Highest Common Factor of 800,621 is 1

Step 1: Since 800 > 621, we apply the division lemma to 800 and 621, to get

800 = 621 x 1 + 179

Step 2: Since the reminder 621 ≠ 0, we apply division lemma to 179 and 621, to get

621 = 179 x 3 + 84

Step 3: We consider the new divisor 179 and the new remainder 84, and apply the division lemma to get

179 = 84 x 2 + 11

We consider the new divisor 84 and the new remainder 11,and apply the division lemma to get

84 = 11 x 7 + 7

We consider the new divisor 11 and the new remainder 7,and apply the division lemma to get

11 = 7 x 1 + 4

We consider the new divisor 7 and the new remainder 4,and apply the division lemma to get

7 = 4 x 1 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 800 and 621 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(11,7) = HCF(84,11) = HCF(179,84) = HCF(621,179) = HCF(800,621) .

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Frequently Asked Questions on HCF of 800, 621 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 800, 621?

Answer: HCF of 800, 621 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 800, 621 using Euclid's Algorithm?

Answer: For arbitrary numbers 800, 621 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.