Highest Common Factor of 617, 456, 685 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 617, 456, 685 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 617, 456, 685 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 617, 456, 685 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 617, 456, 685 is 1.

HCF(617, 456, 685) = 1

HCF of 617, 456, 685 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 617, 456, 685 is 1.

Highest Common Factor of 617,456,685 using Euclid's algorithm

Highest Common Factor of 617,456,685 is 1

Step 1: Since 617 > 456, we apply the division lemma to 617 and 456, to get

617 = 456 x 1 + 161

Step 2: Since the reminder 456 ≠ 0, we apply division lemma to 161 and 456, to get

456 = 161 x 2 + 134

Step 3: We consider the new divisor 161 and the new remainder 134, and apply the division lemma to get

161 = 134 x 1 + 27

We consider the new divisor 134 and the new remainder 27,and apply the division lemma to get

134 = 27 x 4 + 26

We consider the new divisor 27 and the new remainder 26,and apply the division lemma to get

27 = 26 x 1 + 1

We consider the new divisor 26 and the new remainder 1,and apply the division lemma to get

26 = 1 x 26 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 617 and 456 is 1

Notice that 1 = HCF(26,1) = HCF(27,26) = HCF(134,27) = HCF(161,134) = HCF(456,161) = HCF(617,456) .


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

Step 1: Since 685 > 1, we apply the division lemma to 685 and 1, to get

685 = 1 x 685 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 685 is 1

Notice that 1 = HCF(685,1) .

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Frequently Asked Questions on HCF of 617, 456, 685 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 617, 456, 685?

Answer: HCF of 617, 456, 685 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 617, 456, 685 using Euclid's Algorithm?

Answer: For arbitrary numbers 617, 456, 685 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.