Highest Common Factor of 485, 872, 81 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 485, 872, 81 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 485, 872, 81 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 485, 872, 81 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 485, 872, 81 is 1.

HCF(485, 872, 81) = 1

HCF of 485, 872, 81 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 485, 872, 81 is 1.

Highest Common Factor of 485,872,81 using Euclid's algorithm

Highest Common Factor of 485,872,81 is 1

Step 1: Since 872 > 485, we apply the division lemma to 872 and 485, to get

872 = 485 x 1 + 387

Step 2: Since the reminder 485 ≠ 0, we apply division lemma to 387 and 485, to get

485 = 387 x 1 + 98

Step 3: We consider the new divisor 387 and the new remainder 98, and apply the division lemma to get

387 = 98 x 3 + 93

We consider the new divisor 98 and the new remainder 93,and apply the division lemma to get

98 = 93 x 1 + 5

We consider the new divisor 93 and the new remainder 5,and apply the division lemma to get

93 = 5 x 18 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 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 485 and 872 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(93,5) = HCF(98,93) = HCF(387,98) = HCF(485,387) = HCF(872,485) .

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

Step 1: Since 81 > 1, we apply the division lemma to 81 and 1, to get

81 = 1 x 81 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 81 is 1

Notice that 1 = HCF(81,1) .

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Frequently Asked Questions on HCF of 485, 872, 81 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 485, 872, 81?

Answer: HCF of 485, 872, 81 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 485, 872, 81 using Euclid's Algorithm?

Answer: For arbitrary numbers 485, 872, 81 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.