Highest Common Factor of 676, 243 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 676, 243 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 676, 243 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 676, 243 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 676, 243 is 1.

HCF(676, 243) = 1

HCF of 676, 243 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 676, 243 is 1.

Highest Common Factor of 676,243 using Euclid's algorithm

Highest Common Factor of 676,243 is 1

Step 1: Since 676 > 243, we apply the division lemma to 676 and 243, to get

676 = 243 x 2 + 190

Step 2: Since the reminder 243 ≠ 0, we apply division lemma to 190 and 243, to get

243 = 190 x 1 + 53

Step 3: We consider the new divisor 190 and the new remainder 53, and apply the division lemma to get

190 = 53 x 3 + 31

We consider the new divisor 53 and the new remainder 31,and apply the division lemma to get

53 = 31 x 1 + 22

We consider the new divisor 31 and the new remainder 22,and apply the division lemma to get

31 = 22 x 1 + 9

We consider the new divisor 22 and the new remainder 9,and apply the division lemma to get

22 = 9 x 2 + 4

We consider the new divisor 9 and the new remainder 4,and apply the division lemma to get

9 = 4 x 2 + 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 676 and 243 is 1

Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(22,9) = HCF(31,22) = HCF(53,31) = HCF(190,53) = HCF(243,190) = HCF(676,243) .

HCF using Euclid's Algorithm Calculation Examples

Here are some samples of HCF using Euclid's Algorithm calculations.

Frequently Asked Questions on HCF of 676, 243 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 676, 243?

Answer: HCF of 676, 243 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 676, 243 using Euclid's Algorithm?

Answer: For arbitrary numbers 676, 243 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.