Highest Common Factor of 291, 493, 205 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 291, 493, 205 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 291, 493, 205 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 291, 493, 205 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 291, 493, 205 is 1.

HCF(291, 493, 205) = 1

HCF of 291, 493, 205 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 291, 493, 205 is 1.

Highest Common Factor of 291,493,205 using Euclid's algorithm

Highest Common Factor of 291,493,205 is 1

Step 1: Since 493 > 291, we apply the division lemma to 493 and 291, to get

493 = 291 x 1 + 202

Step 2: Since the reminder 291 ≠ 0, we apply division lemma to 202 and 291, to get

291 = 202 x 1 + 89

Step 3: We consider the new divisor 202 and the new remainder 89, and apply the division lemma to get

202 = 89 x 2 + 24

We consider the new divisor 89 and the new remainder 24,and apply the division lemma to get

89 = 24 x 3 + 17

We consider the new divisor 24 and the new remainder 17,and apply the division lemma to get

24 = 17 x 1 + 7

We consider the new divisor 17 and the new remainder 7,and apply the division lemma to get

17 = 7 x 2 + 3

We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get

7 = 3 x 2 + 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 291 and 493 is 1

Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(17,7) = HCF(24,17) = HCF(89,24) = HCF(202,89) = HCF(291,202) = HCF(493,291) .

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

Step 1: Since 205 > 1, we apply the division lemma to 205 and 1, to get

205 = 1 x 205 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 205 is 1

Notice that 1 = HCF(205,1) .

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Frequently Asked Questions on HCF of 291, 493, 205 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 291, 493, 205?

Answer: HCF of 291, 493, 205 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 291, 493, 205 using Euclid's Algorithm?

Answer: For arbitrary numbers 291, 493, 205 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.