Highest Common Factor of 787, 285, 497 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 787, 285, 497 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 787, 285, 497 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 787, 285, 497 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 787, 285, 497 is 1.

HCF(787, 285, 497) = 1

HCF of 787, 285, 497 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 787, 285, 497 is 1.

Highest Common Factor of 787,285,497 using Euclid's algorithm

Highest Common Factor of 787,285,497 is 1

Step 1: Since 787 > 285, we apply the division lemma to 787 and 285, to get

787 = 285 x 2 + 217

Step 2: Since the reminder 285 ≠ 0, we apply division lemma to 217 and 285, to get

285 = 217 x 1 + 68

Step 3: We consider the new divisor 217 and the new remainder 68, and apply the division lemma to get

217 = 68 x 3 + 13

We consider the new divisor 68 and the new remainder 13,and apply the division lemma to get

68 = 13 x 5 + 3

We consider the new divisor 13 and the new remainder 3,and apply the division lemma to get

13 = 3 x 4 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma 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 787 and 285 is 1

Notice that 1 = HCF(3,1) = HCF(13,3) = HCF(68,13) = HCF(217,68) = HCF(285,217) = HCF(787,285) .

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

Step 1: Since 497 > 1, we apply the division lemma to 497 and 1, to get

497 = 1 x 497 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 497 is 1

Notice that 1 = HCF(497,1) .

HCF using Euclid's Algorithm Calculation Examples

Here are some samples of HCF using Euclid's Algorithm calculations.

Frequently Asked Questions on HCF of 787, 285, 497 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 787, 285, 497?

Answer: HCF of 787, 285, 497 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 787, 285, 497 using Euclid's Algorithm?

Answer: For arbitrary numbers 787, 285, 497 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.