Highest Common Factor of 687, 422, 354 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 687, 422, 354 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 687, 422, 354 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 687, 422, 354 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 687, 422, 354 is 1.

HCF(687, 422, 354) = 1

HCF of 687, 422, 354 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 687, 422, 354 is 1.

Highest Common Factor of 687,422,354 using Euclid's algorithm

Highest Common Factor of 687,422,354 is 1

Step 1: Since 687 > 422, we apply the division lemma to 687 and 422, to get

687 = 422 x 1 + 265

Step 2: Since the reminder 422 ≠ 0, we apply division lemma to 265 and 422, to get

422 = 265 x 1 + 157

Step 3: We consider the new divisor 265 and the new remainder 157, and apply the division lemma to get

265 = 157 x 1 + 108

We consider the new divisor 157 and the new remainder 108,and apply the division lemma to get

157 = 108 x 1 + 49

We consider the new divisor 108 and the new remainder 49,and apply the division lemma to get

108 = 49 x 2 + 10

We consider the new divisor 49 and the new remainder 10,and apply the division lemma to get

49 = 10 x 4 + 9

We consider the new divisor 10 and the new remainder 9,and apply the division lemma to get

10 = 9 x 1 + 1

We consider the new divisor 9 and the new remainder 1,and apply the division lemma to get

9 = 1 x 9 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 687 and 422 is 1

Notice that 1 = HCF(9,1) = HCF(10,9) = HCF(49,10) = HCF(108,49) = HCF(157,108) = HCF(265,157) = HCF(422,265) = HCF(687,422) .

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

Step 1: Since 354 > 1, we apply the division lemma to 354 and 1, to get

354 = 1 x 354 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 354 is 1

Notice that 1 = HCF(354,1) .

HCF using Euclid's Algorithm Calculation Examples

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

Frequently Asked Questions on HCF of 687, 422, 354 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 687, 422, 354?

Answer: HCF of 687, 422, 354 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 687, 422, 354 using Euclid's Algorithm?

Answer: For arbitrary numbers 687, 422, 354 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.