Highest Common Factor of 634, 409, 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 634, 409, 243 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 634, 409, 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 634, 409, 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 634, 409, 243 is 1.

HCF(634, 409, 243) = 1

HCF of 634, 409, 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 634, 409, 243 is 1.

Highest Common Factor of 634,409,243 using Euclid's algorithm

Highest Common Factor of 634,409,243 is 1

Step 1: Since 634 > 409, we apply the division lemma to 634 and 409, to get

634 = 409 x 1 + 225

Step 2: Since the reminder 409 ≠ 0, we apply division lemma to 225 and 409, to get

409 = 225 x 1 + 184

Step 3: We consider the new divisor 225 and the new remainder 184, and apply the division lemma to get

225 = 184 x 1 + 41

We consider the new divisor 184 and the new remainder 41,and apply the division lemma to get

184 = 41 x 4 + 20

We consider the new divisor 41 and the new remainder 20,and apply the division lemma to get

41 = 20 x 2 + 1

We consider the new divisor 20 and the new remainder 1,and apply the division lemma to get

20 = 1 x 20 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 634 and 409 is 1

Notice that 1 = HCF(20,1) = HCF(41,20) = HCF(184,41) = HCF(225,184) = HCF(409,225) = HCF(634,409) .

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

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

243 = 1 x 243 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 243 is 1

Notice that 1 = HCF(243,1) .

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Frequently Asked Questions on HCF of 634, 409, 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 634, 409, 243?

Answer: HCF of 634, 409, 243 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 634, 409, 243 using Euclid's Algorithm?

Answer: For arbitrary numbers 634, 409, 243 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.