Highest Common Factor of 817, 409, 404 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 817, 409, 404 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 817, 409, 404 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 817, 409, 404 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 817, 409, 404 is 1.

HCF(817, 409, 404) = 1

HCF of 817, 409, 404 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 817, 409, 404 is 1.

Highest Common Factor of 817,409,404 using Euclid's algorithm

Highest Common Factor of 817,409,404 is 1

Step 1: Since 817 > 409, we apply the division lemma to 817 and 409, to get

817 = 409 x 1 + 408

Step 2: Since the reminder 409 ≠ 0, we apply division lemma to 408 and 409, to get

409 = 408 x 1 + 1

Step 3: We consider the new divisor 408 and the new remainder 1, and apply the division lemma to get

408 = 1 x 408 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 817 and 409 is 1

Notice that 1 = HCF(408,1) = HCF(409,408) = HCF(817,409) .


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

Step 1: Since 404 > 1, we apply the division lemma to 404 and 1, to get

404 = 1 x 404 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 404 is 1

Notice that 1 = HCF(404,1) .

HCF using Euclid's Algorithm Calculation Examples

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

Frequently Asked Questions on HCF of 817, 409, 404 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 817, 409, 404?

Answer: HCF of 817, 409, 404 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 817, 409, 404 using Euclid's Algorithm?

Answer: For arbitrary numbers 817, 409, 404 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.