Highest Common Factor of 821, 934, 985 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 821, 934, 985 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 821, 934, 985 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 821, 934, 985 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 821, 934, 985 is 1.

HCF(821, 934, 985) = 1

HCF of 821, 934, 985 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 821, 934, 985 is 1.

Highest Common Factor of 821,934,985 using Euclid's algorithm

Highest Common Factor of 821,934,985 is 1

Step 1: Since 934 > 821, we apply the division lemma to 934 and 821, to get

934 = 821 x 1 + 113

Step 2: Since the reminder 821 ≠ 0, we apply division lemma to 113 and 821, to get

821 = 113 x 7 + 30

Step 3: We consider the new divisor 113 and the new remainder 30, and apply the division lemma to get

113 = 30 x 3 + 23

We consider the new divisor 30 and the new remainder 23,and apply the division lemma to get

30 = 23 x 1 + 7

We consider the new divisor 23 and the new remainder 7,and apply the division lemma to get

23 = 7 x 3 + 2

We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get

7 = 2 x 3 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 821 and 934 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(23,7) = HCF(30,23) = HCF(113,30) = HCF(821,113) = HCF(934,821) .

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

Step 1: Since 985 > 1, we apply the division lemma to 985 and 1, to get

985 = 1 x 985 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 985 is 1

Notice that 1 = HCF(985,1) .

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Frequently Asked Questions on HCF of 821, 934, 985 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 821, 934, 985?

Answer: HCF of 821, 934, 985 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 821, 934, 985 using Euclid's Algorithm?

Answer: For arbitrary numbers 821, 934, 985 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.