Highest Common Factor of 555, 843 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 555, 843 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 555, 843 is 3 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 555, 843 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 555, 843 is 3.

HCF(555, 843) = 3

HCF of 555, 843 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 555, 843 is 3.

Highest Common Factor of 555,843 using Euclid's algorithm

Highest Common Factor of 555,843 is 3

Step 1: Since 843 > 555, we apply the division lemma to 843 and 555, to get

843 = 555 x 1 + 288

Step 2: Since the reminder 555 ≠ 0, we apply division lemma to 288 and 555, to get

555 = 288 x 1 + 267

Step 3: We consider the new divisor 288 and the new remainder 267, and apply the division lemma to get

288 = 267 x 1 + 21

We consider the new divisor 267 and the new remainder 21,and apply the division lemma to get

267 = 21 x 12 + 15

We consider the new divisor 21 and the new remainder 15,and apply the division lemma to get

21 = 15 x 1 + 6

We consider the new divisor 15 and the new remainder 6,and apply the division lemma to get

15 = 6 x 2 + 3

We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get

6 = 3 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 555 and 843 is 3

Notice that 3 = HCF(6,3) = HCF(15,6) = HCF(21,15) = HCF(267,21) = HCF(288,267) = HCF(555,288) = HCF(843,555) .

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Frequently Asked Questions on HCF of 555, 843 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 555, 843?

Answer: HCF of 555, 843 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 555, 843 using Euclid's Algorithm?

Answer: For arbitrary numbers 555, 843 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.