Highest Common Factor of 490, 355, 811 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 490, 355, 811 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 490, 355, 811 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 490, 355, 811 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 490, 355, 811 is 1.

HCF(490, 355, 811) = 1

HCF of 490, 355, 811 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 490, 355, 811 is 1.

Highest Common Factor of 490,355,811 using Euclid's algorithm

Highest Common Factor of 490,355,811 is 1

Step 1: Since 490 > 355, we apply the division lemma to 490 and 355, to get

490 = 355 x 1 + 135

Step 2: Since the reminder 355 ≠ 0, we apply division lemma to 135 and 355, to get

355 = 135 x 2 + 85

Step 3: We consider the new divisor 135 and the new remainder 85, and apply the division lemma to get

135 = 85 x 1 + 50

We consider the new divisor 85 and the new remainder 50,and apply the division lemma to get

85 = 50 x 1 + 35

We consider the new divisor 50 and the new remainder 35,and apply the division lemma to get

50 = 35 x 1 + 15

We consider the new divisor 35 and the new remainder 15,and apply the division lemma to get

35 = 15 x 2 + 5

We consider the new divisor 15 and the new remainder 5,and apply the division lemma to get

15 = 5 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 490 and 355 is 5

Notice that 5 = HCF(15,5) = HCF(35,15) = HCF(50,35) = HCF(85,50) = HCF(135,85) = HCF(355,135) = HCF(490,355) .

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

Step 1: Since 811 > 5, we apply the division lemma to 811 and 5, to get

811 = 5 x 162 + 1

Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 1 and 5, to get

5 = 1 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 5 and 811 is 1

Notice that 1 = HCF(5,1) = HCF(811,5) .

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Frequently Asked Questions on HCF of 490, 355, 811 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 490, 355, 811?

Answer: HCF of 490, 355, 811 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 490, 355, 811 using Euclid's Algorithm?

Answer: For arbitrary numbers 490, 355, 811 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.