Highest Common Factor of 393, 664, 173 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 393, 664, 173 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 393, 664, 173 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 393, 664, 173 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 393, 664, 173 is 1.

HCF(393, 664, 173) = 1

HCF of 393, 664, 173 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 393, 664, 173 is 1.

Highest Common Factor of 393,664,173 using Euclid's algorithm

Highest Common Factor of 393,664,173 is 1

Step 1: Since 664 > 393, we apply the division lemma to 664 and 393, to get

664 = 393 x 1 + 271

Step 2: Since the reminder 393 ≠ 0, we apply division lemma to 271 and 393, to get

393 = 271 x 1 + 122

Step 3: We consider the new divisor 271 and the new remainder 122, and apply the division lemma to get

271 = 122 x 2 + 27

We consider the new divisor 122 and the new remainder 27,and apply the division lemma to get

122 = 27 x 4 + 14

We consider the new divisor 27 and the new remainder 14,and apply the division lemma to get

27 = 14 x 1 + 13

We consider the new divisor 14 and the new remainder 13,and apply the division lemma to get

14 = 13 x 1 + 1

We consider the new divisor 13 and the new remainder 1,and apply the division lemma to get

13 = 1 x 13 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 393 and 664 is 1

Notice that 1 = HCF(13,1) = HCF(14,13) = HCF(27,14) = HCF(122,27) = HCF(271,122) = HCF(393,271) = HCF(664,393) .

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

Step 1: Since 173 > 1, we apply the division lemma to 173 and 1, to get

173 = 1 x 173 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 173 is 1

Notice that 1 = HCF(173,1) .

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Frequently Asked Questions on HCF of 393, 664, 173 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 393, 664, 173?

Answer: HCF of 393, 664, 173 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 393, 664, 173 using Euclid's Algorithm?

Answer: For arbitrary numbers 393, 664, 173 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.