Highest Common Factor of 654, 355, 319 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 654, 355, 319 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 654, 355, 319 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 654, 355, 319 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 654, 355, 319 is 1.

HCF(654, 355, 319) = 1

HCF of 654, 355, 319 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 654, 355, 319 is 1.

Highest Common Factor of 654,355,319 using Euclid's algorithm

Highest Common Factor of 654,355,319 is 1

Step 1: Since 654 > 355, we apply the division lemma to 654 and 355, to get

654 = 355 x 1 + 299

Step 2: Since the reminder 355 ≠ 0, we apply division lemma to 299 and 355, to get

355 = 299 x 1 + 56

Step 3: We consider the new divisor 299 and the new remainder 56, and apply the division lemma to get

299 = 56 x 5 + 19

We consider the new divisor 56 and the new remainder 19,and apply the division lemma to get

56 = 19 x 2 + 18

We consider the new divisor 19 and the new remainder 18,and apply the division lemma to get

19 = 18 x 1 + 1

We consider the new divisor 18 and the new remainder 1,and apply the division lemma to get

18 = 1 x 18 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 654 and 355 is 1

Notice that 1 = HCF(18,1) = HCF(19,18) = HCF(56,19) = HCF(299,56) = HCF(355,299) = HCF(654,355) .


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

Step 1: Since 319 > 1, we apply the division lemma to 319 and 1, to get

319 = 1 x 319 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 319 is 1

Notice that 1 = HCF(319,1) .

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Frequently Asked Questions on HCF of 654, 355, 319 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 654, 355, 319?

Answer: HCF of 654, 355, 319 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 654, 355, 319 using Euclid's Algorithm?

Answer: For arbitrary numbers 654, 355, 319 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.