Highest Common Factor of 210, 409, 868 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 210, 409, 868 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 210, 409, 868 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 210, 409, 868 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 210, 409, 868 is 1.

HCF(210, 409, 868) = 1

HCF of 210, 409, 868 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 210, 409, 868 is 1.

Highest Common Factor of 210,409,868 using Euclid's algorithm

Highest Common Factor of 210,409,868 is 1

Step 1: Since 409 > 210, we apply the division lemma to 409 and 210, to get

409 = 210 x 1 + 199

Step 2: Since the reminder 210 ≠ 0, we apply division lemma to 199 and 210, to get

210 = 199 x 1 + 11

Step 3: We consider the new divisor 199 and the new remainder 11, and apply the division lemma to get

199 = 11 x 18 + 1

We consider the new divisor 11 and the new remainder 1, and apply the division lemma to get

11 = 1 x 11 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 210 and 409 is 1

Notice that 1 = HCF(11,1) = HCF(199,11) = HCF(210,199) = HCF(409,210) .


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

Step 1: Since 868 > 1, we apply the division lemma to 868 and 1, to get

868 = 1 x 868 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 868 is 1

Notice that 1 = HCF(868,1) .

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Frequently Asked Questions on HCF of 210, 409, 868 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 210, 409, 868?

Answer: HCF of 210, 409, 868 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 210, 409, 868 using Euclid's Algorithm?

Answer: For arbitrary numbers 210, 409, 868 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.