Highest Common Factor of 422, 661, 855 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 422, 661, 855 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 422, 661, 855 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 422, 661, 855 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 422, 661, 855 is 1.

HCF(422, 661, 855) = 1

HCF of 422, 661, 855 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 422, 661, 855 is 1.

Highest Common Factor of 422,661,855 using Euclid's algorithm

Highest Common Factor of 422,661,855 is 1

Step 1: Since 661 > 422, we apply the division lemma to 661 and 422, to get

661 = 422 x 1 + 239

Step 2: Since the reminder 422 ≠ 0, we apply division lemma to 239 and 422, to get

422 = 239 x 1 + 183

Step 3: We consider the new divisor 239 and the new remainder 183, and apply the division lemma to get

239 = 183 x 1 + 56

We consider the new divisor 183 and the new remainder 56,and apply the division lemma to get

183 = 56 x 3 + 15

We consider the new divisor 56 and the new remainder 15,and apply the division lemma to get

56 = 15 x 3 + 11

We consider the new divisor 15 and the new remainder 11,and apply the division lemma to get

15 = 11 x 1 + 4

We consider the new divisor 11 and the new remainder 4,and apply the division lemma to get

11 = 4 x 2 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 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 422 and 661 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(15,11) = HCF(56,15) = HCF(183,56) = HCF(239,183) = HCF(422,239) = HCF(661,422) .

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

Step 1: Since 855 > 1, we apply the division lemma to 855 and 1, to get

855 = 1 x 855 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 855 is 1

Notice that 1 = HCF(855,1) .

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Frequently Asked Questions on HCF of 422, 661, 855 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 422, 661, 855?

Answer: HCF of 422, 661, 855 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 422, 661, 855 using Euclid's Algorithm?

Answer: For arbitrary numbers 422, 661, 855 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.