Highest Common Factor of 770, 549, 449 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 770, 549, 449 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 770, 549, 449 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 770, 549, 449 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 770, 549, 449 is 1.

HCF(770, 549, 449) = 1

HCF of 770, 549, 449 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 770, 549, 449 is 1.

Highest Common Factor of 770,549,449 using Euclid's algorithm

Highest Common Factor of 770,549,449 is 1

Step 1: Since 770 > 549, we apply the division lemma to 770 and 549, to get

770 = 549 x 1 + 221

Step 2: Since the reminder 549 ≠ 0, we apply division lemma to 221 and 549, to get

549 = 221 x 2 + 107

Step 3: We consider the new divisor 221 and the new remainder 107, and apply the division lemma to get

221 = 107 x 2 + 7

We consider the new divisor 107 and the new remainder 7,and apply the division lemma to get

107 = 7 x 15 + 2

We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get

7 = 2 x 3 + 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 770 and 549 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(107,7) = HCF(221,107) = HCF(549,221) = HCF(770,549) .

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

Step 1: Since 449 > 1, we apply the division lemma to 449 and 1, to get

449 = 1 x 449 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 449 is 1

Notice that 1 = HCF(449,1) .

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Frequently Asked Questions on HCF of 770, 549, 449 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 770, 549, 449?

Answer: HCF of 770, 549, 449 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 770, 549, 449 using Euclid's Algorithm?

Answer: For arbitrary numbers 770, 549, 449 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.