Highest Common Factor of 721, 439, 54 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 721, 439, 54 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 721, 439, 54 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 721, 439, 54 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 721, 439, 54 is 1.

HCF(721, 439, 54) = 1

HCF of 721, 439, 54 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 721, 439, 54 is 1.

Highest Common Factor of 721,439,54 using Euclid's algorithm

Highest Common Factor of 721,439,54 is 1

Step 1: Since 721 > 439, we apply the division lemma to 721 and 439, to get

721 = 439 x 1 + 282

Step 2: Since the reminder 439 ≠ 0, we apply division lemma to 282 and 439, to get

439 = 282 x 1 + 157

Step 3: We consider the new divisor 282 and the new remainder 157, and apply the division lemma to get

282 = 157 x 1 + 125

We consider the new divisor 157 and the new remainder 125,and apply the division lemma to get

157 = 125 x 1 + 32

We consider the new divisor 125 and the new remainder 32,and apply the division lemma to get

125 = 32 x 3 + 29

We consider the new divisor 32 and the new remainder 29,and apply the division lemma to get

32 = 29 x 1 + 3

We consider the new divisor 29 and the new remainder 3,and apply the division lemma to get

29 = 3 x 9 + 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 721 and 439 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(29,3) = HCF(32,29) = HCF(125,32) = HCF(157,125) = HCF(282,157) = HCF(439,282) = HCF(721,439) .

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

Step 1: Since 54 > 1, we apply the division lemma to 54 and 1, to get

54 = 1 x 54 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 54 is 1

Notice that 1 = HCF(54,1) .

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Frequently Asked Questions on HCF of 721, 439, 54 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 721, 439, 54?

Answer: HCF of 721, 439, 54 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 721, 439, 54 using Euclid's Algorithm?

Answer: For arbitrary numbers 721, 439, 54 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.