Highest Common Factor of 693, 255, 193 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 693, 255, 193 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 693, 255, 193 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 693, 255, 193 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 693, 255, 193 is 1.

HCF(693, 255, 193) = 1

HCF of 693, 255, 193 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 693, 255, 193 is 1.

Highest Common Factor of 693,255,193 using Euclid's algorithm

Highest Common Factor of 693,255,193 is 1

Step 1: Since 693 > 255, we apply the division lemma to 693 and 255, to get

693 = 255 x 2 + 183

Step 2: Since the reminder 255 ≠ 0, we apply division lemma to 183 and 255, to get

255 = 183 x 1 + 72

Step 3: We consider the new divisor 183 and the new remainder 72, and apply the division lemma to get

183 = 72 x 2 + 39

We consider the new divisor 72 and the new remainder 39,and apply the division lemma to get

72 = 39 x 1 + 33

We consider the new divisor 39 and the new remainder 33,and apply the division lemma to get

39 = 33 x 1 + 6

We consider the new divisor 33 and the new remainder 6,and apply the division lemma to get

33 = 6 x 5 + 3

We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get

6 = 3 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 693 and 255 is 3

Notice that 3 = HCF(6,3) = HCF(33,6) = HCF(39,33) = HCF(72,39) = HCF(183,72) = HCF(255,183) = HCF(693,255) .

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

Step 1: Since 193 > 3, we apply the division lemma to 193 and 3, to get

193 = 3 x 64 + 1

Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, 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 3 and 193 is 1

Notice that 1 = HCF(3,1) = HCF(193,3) .

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Frequently Asked Questions on HCF of 693, 255, 193 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 693, 255, 193?

Answer: HCF of 693, 255, 193 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 693, 255, 193 using Euclid's Algorithm?

Answer: For arbitrary numbers 693, 255, 193 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.