Highest Common Factor of 457, 780, 673 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, 780, 673 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 457, 780, 673 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, 780, 673 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, 780, 673 is 1.

HCF(457, 780, 673) = 1

HCF of 457, 780, 673 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, 780, 673 is 1.

Highest Common Factor of 457,780,673 using Euclid's algorithm

Highest Common Factor of 457,780,673 is 1

Step 1: Since 780 > 457, we apply the division lemma to 780 and 457, to get

780 = 457 x 1 + 323

Step 2: Since the reminder 457 ≠ 0, we apply division lemma to 323 and 457, to get

457 = 323 x 1 + 134

Step 3: We consider the new divisor 323 and the new remainder 134, and apply the division lemma to get

323 = 134 x 2 + 55

We consider the new divisor 134 and the new remainder 55,and apply the division lemma to get

134 = 55 x 2 + 24

We consider the new divisor 55 and the new remainder 24,and apply the division lemma to get

55 = 24 x 2 + 7

We consider the new divisor 24 and the new remainder 7,and apply the division lemma to get

24 = 7 x 3 + 3

We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get

7 = 3 x 2 + 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 457 and 780 is 1

Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(24,7) = HCF(55,24) = HCF(134,55) = HCF(323,134) = HCF(457,323) = HCF(780,457) .

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

Step 1: Since 673 > 1, we apply the division lemma to 673 and 1, to get

673 = 1 x 673 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 673 is 1

Notice that 1 = HCF(673,1) .

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Frequently Asked Questions on HCF of 457, 780, 673 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, 780, 673?

Answer: HCF of 457, 780, 673 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 457, 780, 673 using Euclid's Algorithm?

Answer: For arbitrary numbers 457, 780, 673 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.