Highest Common Factor of 493, 787 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 493, 787 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 493, 787 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 493, 787 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 493, 787 is 1.

HCF(493, 787) = 1

HCF of 493, 787 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 493, 787 is 1.

Highest Common Factor of 493,787 using Euclid's algorithm

Highest Common Factor of 493,787 is 1

Step 1: Since 787 > 493, we apply the division lemma to 787 and 493, to get

787 = 493 x 1 + 294

Step 2: Since the reminder 493 ≠ 0, we apply division lemma to 294 and 493, to get

493 = 294 x 1 + 199

Step 3: We consider the new divisor 294 and the new remainder 199, and apply the division lemma to get

294 = 199 x 1 + 95

We consider the new divisor 199 and the new remainder 95,and apply the division lemma to get

199 = 95 x 2 + 9

We consider the new divisor 95 and the new remainder 9,and apply the division lemma to get

95 = 9 x 10 + 5

We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get

9 = 5 x 1 + 4

We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get

5 = 4 x 1 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 493 and 787 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(95,9) = HCF(199,95) = HCF(294,199) = HCF(493,294) = HCF(787,493) .

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Frequently Asked Questions on HCF of 493, 787 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 493, 787?

Answer: HCF of 493, 787 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 493, 787 using Euclid's Algorithm?

Answer: For arbitrary numbers 493, 787 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.