Highest Common Factor of 457, 9789 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 457, 9789 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 457, 9789 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 457, 9789 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 457, 9789 is 1.

HCF(457, 9789) = 1

HCF of 457, 9789 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 457, 9789 is 1.

Highest Common Factor of 457,9789 using Euclid's algorithm

Highest Common Factor of 457,9789 is 1

Step 1: Since 9789 > 457, we apply the division lemma to 9789 and 457, to get

9789 = 457 x 21 + 192

Step 2: Since the reminder 457 ≠ 0, we apply division lemma to 192 and 457, to get

457 = 192 x 2 + 73

Step 3: We consider the new divisor 192 and the new remainder 73, and apply the division lemma to get

192 = 73 x 2 + 46

We consider the new divisor 73 and the new remainder 46,and apply the division lemma to get

73 = 46 x 1 + 27

We consider the new divisor 46 and the new remainder 27,and apply the division lemma to get

46 = 27 x 1 + 19

We consider the new divisor 27 and the new remainder 19,and apply the division lemma to get

27 = 19 x 1 + 8

We consider the new divisor 19 and the new remainder 8,and apply the division lemma to get

19 = 8 x 2 + 3

We consider the new divisor 8 and the new remainder 3,and apply the division lemma to get

8 = 3 x 2 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 457 and 9789 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(8,3) = HCF(19,8) = HCF(27,19) = HCF(46,27) = HCF(73,46) = HCF(192,73) = HCF(457,192) = HCF(9789,457) .

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Frequently Asked Questions on HCF of 457, 9789 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 457, 9789?

Answer: HCF of 457, 9789 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 457, 9789 using Euclid's Algorithm?

Answer: For arbitrary numbers 457, 9789 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.